Neem: nice, nasty or… not sure?

A few days ago it was sunny and slightly breezy outside (yes, it’s August, but I live in the UK – this isn’t as common as you might imagine) and I thought, I should make the most of this and do something about my orchids.

Now, anyone that reads this blog regularly will know that my Dad is a horticulturist. I, however, am not. My fascination with bright colours, interesting smells and complicated naming conventions went down the chemistry route. But I am, oddly, quite good with Phalaenopsis, aka, moth orchids. I don’t really know why, or how, but I seem to have come to some sort of agreement with the ones that live on my kitchen windowsill. It goes along the lines of: I’ll water you once a week, and you make flowers a couple of times a year, and we’ll otherwise leave each other alone, okay?

Scale bugs secrete honeydew, which encourages the growth of sooty moulds

Well, this was fine for years, until we somehow acquired an infestation of scale bugs. These tiny but extremely annoying pests feed by sucking sap from leaves of plants, and they excrete a sticky substance called honeydew. Trust me, it’s not as nice as it sounds. Firstly, it really is sticky, and makes a horrible mess not just of the orchid leaves, but also the area around the plants.

Then it turns out that certain types of mould just love this stuff, so you end up with black spots on the leaves. And, not surprisingly, all this weakens the plant.

So, what’s the answer? Well, there are several. But the one I tend to default to is neem oil.

This stuff is a vegetable oil from the seeds of the Azadirachta indica, or neem, tree. It has a musty, nutty sort of smell, and is fairly easy to buy.

It’s indigenous to the Indian subcontinent and has been historically important in traditional medicine. In fact, The Sanskrit name of this evergreen tree is ‘Arishtha’, which means ‘reliever of sickness’.

So it’s a natural vegetable oil and people have been using it as a remedy for thousands of years – must be totally safe, right? Right?

Well… I’ve said it before, but some of the very best horribly toxic things are entirely natural, and neem is yet another example. Ingestion of significant quantities can cause metabolic acidosis (finally, something that really does have the potential to change blood pH! Er… but not… in a good way), kidney failure, seizures, and brain damage in children. Skin contact can cause contact dermatitis. It’s been shown to work as a contraceptive and, more problematically, it’s a known abortifacient (causes miscarriage).

Neem oil is easy to buy, but it needs to be handled with caution

All this said, as always, the dose make the poison.

One case study in the Journal of The Association of Physicians of India reported on a 36-year-old man who swallowed 30–50 ml (about three tablespoons) of neem oil, in the hope of treating the corns on his feet. As far as I can tell, it didn’t help his corns. It did cause vomiting, drowsiness, a dangerous drop in blood pH and seizures. There’s no specific antidote for neem poisoning, but the hospital managed his symptoms. Luckily, despite the hammering his kidneys undoubtedly took, he didn’t need dialysis, and was discharged from hospital after just over a week.

Now, okay, you’re unlikely to accidentally swallow three tablespoons of any oil, especially not neem which does have quite a strong, not entirely pleasant, smell and (reportedly – I haven’t tried for obvious reasons) a bitter taste. But nevertheless, it’s wise to be cautious, particularly around children who have a smaller body mass and therefore are much more likely to suffer serious effects – up to and including death. In one reported case, a mother gave a 3-month-old child a teaspoon of neem oil in the hope of curing his indigestion – fortunately he survived, but not without some seriously scary symptoms.

Nimbin, a chemical found in neem oil, is reported to have all sorts of beneficial effects [image source]

Okay, so those are the dangers. Let’s talk chemistry. The Pakistani organic chemist Salimuzzaman Siddiqui is thought to be the first scientist to formally investigate the various compounds in neem oil. In 1942 he extracted three compounds, and identified nimbidin as the main antibacterial substance in neem. He was awarded an OBE in 1946 for his discoveries.

I will confess, at this point, to running into a little bit of confusion with the nomenclature. Nimbidin is described, in some places at least, as a mixture of compounds (collectively, tetranortriterpenes) rather than a single molecule. But either way, it has been shown to have anti-inflammatory properties – at least in rats.

Another of the probably-mostly-good substances in neem is nimbin: a triterpenoid which is reported to have a whole range of positive properties, including acting as an anti-inflammatory, an antipyretic, a fungicide, an antiseptic and even as an antihistamine. Interestingly, I went looking for safety data on nimbin, and I couldn’t find much. That could mean it’s safe, or it could mean it just hasn’t been extensively tested.

Azadirachtin, another chemical found in neem, is a known pesticide [image source]

The substance that seems to do most of the pesticide heavy lifting is azadirachtin. This is a limonoid (compounds that are probably best known for their presence in citrus fruits). It’s what’s called an antifeedant – a substance produced by plants to deter predators from munching on them. Well, mostly. Humans have a strange habit of developing a taste for plants that produce such substances. Take, for example, odoriferous garlic, clears-out-your-sinuses horseradish, and of course the daddy of them all: nicotine.

Azadirachtin is known to affect lots of species of insects, both by acting as an antifeedant and as a growth disruptor. Handily, it’s also biodegradable – and breaks down in a few days when exposed to light and water.

That makes it appealing as a potential pesticide, and it’s also generally described as having low toxicity in mammals – its reported LD50 tends to fall into the grams per kilogram range, which makes it “moderately to slightly toxic“. Wikipedia quotes a value (without a source, as I write this) of >3,540 mg/kg in rats.

But… I did find another page quoting 13 mg/kg in mice. That’s quite dramatically different, and would make it extremely/highly toxic. Unfortunately I couldn’t get my hands on the original source, so I haven’t been able to verify it’s not a transposition error.

Let’s assume it isn’t. It would be odd to have such a big difference between mice and rats. Things that poison mice tend to poison rats, too. There might be some confusion over pure azadirachtin vs. “neem extract” – it could be the case that the mixture of chemicals working together in neem create some sort of synergistic (toxic) effect – greater than the sum of all the individual substances. It could be an experimental error, including a contaminated neem sample, or something to do with the way the animals were exposed to the extract.

Neem soap is widely available online, but that may not be a good thing…

It’s difficult to say. Well, it’s difficult for me to say, because I don’t have access to all the primary sources. (Any toxicologists out there, please do feel free to weigh into the comments section!) But either way, as I’ve already mentioned, several case studies have fingered azadirachtin as one of the substances likely to be causing the well-reported nasty side effects.

If you’re asking this chemist? I say be careful with the stuff. If you decide to use it on your plants, keep it out of reach of children, and wear some good-quality disposable gloves while you’re handling it (I put some on after I took that photo back there). If you’re pregnant, or trying to become pregnant, the safest option is to not use it at all.

Which brings me to neem soap.

Yup. It’s sold as a “natural” treatment for skin conditions like acne. I won’t link to a specific brand, but it’s easy to find multiple retailers with a simple Google search. I looked at one selling soap bars for £6.99 a pop, containing 10% (certified organic, because of course) neem oil. Did I mention back there that neem is known to cause contact dermatitis? I’m fairly sure I did. None of the products I saw had obvious safety warnings, and I certainly found nothing about safety (or otherwise) for pregnant women.

Plus – worryingly, not least because children are more likely to get things in their mouth – you can also buy kids and babies versions, again purporting to contain 10% neem oil.

I even found neem toothpaste. Which… given people often swallow toothpaste… yikes.

My moth orchids are looking much healthier now I’ve got rid of all the scale bugs!

Now again, and for the umpteenth time, the dose makes the poison. The case studies I’ve mentioned involved, at a minimum, swallowing a teaspoon of pure neem oil, and you’re not getting that sort of quantity from smears of toothpaste. But, at the same time, when it comes to pregnancy and babies, it’s generally sensible to apply a precautionary principle, especially for things like soap and toothpaste for which alternatives with well-established safety profiles exist.

Bottom line? Would I use these products? I would not.

But I do use neem to treat the scale bugs on my orchids, and they’re doing much better than they were. Fingers crossed for more flowers!


Do you want something non-sciency to distract you from, well, everything? Why not take a look at my fiction blog: the fiction phial? You can also find me doing various flavours of editor-type-stuff at the horror podcast, PseudoPod.org – so head over there, too!

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How are amber teething necklaces supposed to work?

Do amber beads have medicinal properties?

Amber, as anyone that was paying attention during Jurassic Park will tell you, is fossilised resin from trees that lived at least twenty million years ago (although some scientists have speculated it could be older). It takes the form of clear yellow through to dark brown stones, seemingly warm to the touch, smooth and surprisingly hard. It is certainly beautiful. But does it also have medicinal properties? And if it does, are they risk-free?

In 2016 a one year-old boy was found dead at his daycare centre in Florida. The cause of death was a necklace, which had become tangled and tightened to the point that he was unable to breathe.

Why was he wearing a necklace? Surely everyone knows that babies shouldn’t wear jewellery around their necks where it could so easily cause a terrible tragedy like this? No one needs a necklace, after all – it’s purely a decorative thing. Isn’t it?

Yes. Yes, it is. However, this particular type of jewellery was specifically sold for use by babies. Sold as a product that parents should give their children to wear, despite all the advice from medical professionals. Why? Because this jewellery was made from amber, and that’s supposed to help with teething pains.

Teething is a literal pain.

Anyone whose ever had children will tell you that teeth are basically a non-stop, literal pain from about 4 months onward. Even once your child appears to have a full set, you’re not done. The first lot start falling out somewhere around age five, resulting in teeth that can be wobbly for weeks. And then there are larger molars that come through at the back somewhere around age seven. Teenagers often find themselves suffering through braces and, even when all that’s done, there’s the joy of wisdom teeth still to come.

It’s particularly difficult with babies, who can’t tell you what hurts and who probably have inconsistent sleep habits at the best of times. Twenty sharp teeth poking through swollen gums at different times has to be unpleasant. Who could blame any parent for trying, well, pretty much anything to soothe the discomfort?

Enter amber teething necklaces. They’re sold as a “natural” way to soothe teething pain. They look nice, too, which I’m sure is part of their appeal. A chewed plastic teething ring isn’t the sort of thing to keep in baby’s keepsake box, but a pretty necklace, well, I’m sure many parents have imagined getting that out, running their fingers over the beads and having a sentimental moment years in the future.

Amber is fossilised tree resin.

So-called amber teething necklaces are made from “Baltic amber,” that is, amber from the Baltic region: the largest known deposit of amber. It is found in other geographical locations, but it seems that the conditions – and tree species – were just right in the Baltic region to produce large deposits.

Chemically, it’s also known as succinite, and its structure is complicated. It’s what chemists would call a supramolecule: a complex of two or more (often large) molecules that aren’t covalently bonded. There are cross-links within its structure, which make it much denser than you might imagine something that started as tree resin to be. Baltic amber, in particular, also contains something else: between 3-8% succinic acid.

Succinic acid is a dicarboxylic acid.

Succinic acid is a much simpler molecule with the IUPAC name of butanedioic acid. It contains two carboxylic acid groups, a group of atoms we’re all familiar with whether we realise it or not – because we’ve all met vinegar, which contains the carboxylic acid also known as ethanoic acid. If you imagine chopping succinic acid right down the middle (and adding a few extra hydrogen atoms), you’d end up with two ethanoic acid molecules.

Succinic acid (the name comes from the Latin, succinum, meaning amber) is produced naturally in the body where it is (or, rather, succinate ions are) an important intermediate in lots of chemical reactions. Exposure-wise it’s generally considered pretty safe at low levels and it’s a permitted food additive, used as an acidity regulator. In European countries, you might see it on labels listed as E363. It also turns up in a number of pharmaceutical products, where it’s used as an excipient – something that helps to stabilise or enhance the action of the main active ingredient. Often, again, it’s there to regulate acidity.

Basically, it’s mostly harmless. And therefore, an ideal candidate for the alternative medicine crowd, who make a number of claims about its properties. I found one site claiming that it could “improve cellular respiration” which… well, if you’ve got problem with cellular respiration, you’re less in need of succinic acid and more in need of a coffin. Supposedly it also relives stress and prevents colds, because doesn’t everything? And, of course, it allegedly relieves teething pains in babies, either thanks to its general soothing effect or because it’s supposed to reduce inflammation, or both.

Purporters claim succinic acid is absorbed through the skin.

The reasoning is usually presented like this: succinic acid is released from the amber when the baby wears the necklace or bracelet and is absorbed through the baby’s skin into their body, where it works its magical, soothing effects.

Now. Hold on, one minute. Whether this is true or not – and getting substances to absorb through skin is far less simple than many people imagine, after all, skin evolved as a barrier – do you really, really, want your baby’s skin exposed to a random quantity of an acidic compound? Succinic acid may be pretty harmless but, as always, the dose makes the poison. Concentrated exposure causes skin and eye irritation. Okay, you might say, it’s unlikely that an amber necklace is going to produce anywhere near the quantities to cause that sort of effect, but if that’s your logic, then how can it also produce enough to pass through skin and have any sort of biological effect on the body?

The answer, perhaps predictably, is that it doesn’t. In a paper published in 2019, a group of scientists actually went to the trouble of powdering Baltic amber beads and dissolving the powder in sulfuric acid to measure how much succinic acid they actually contained. They then compared those results with what happened when undamaged beads from the same batches were submerged in solvents, with the aim of working out how much succinic acid beads might conceivably release into human skin. The answer? They couldn’t measure any. No succinic acid was released into the solvents, at all. None.

Scientists submerged Baltic amber beads in solvents to see how much succinic acid they released.

They concluded that there was “no evidence to suggest that the purported active ingredient succinic acid could be released from the beads into human skin” and also added that they found no evidence to suggest that succinic acid even had anti-inflammatory properties in the first place.

So amber necklaces don’t work to relieve teething pains. They can’t. Of course, there could be a sort of placebo effect – teething pain is very much one of those comes-and-goes things. It’s very easy to make connections that just aren’t there in this kind of situation, and imagine that the baby is more settled because of the necklace, when in fact they might have calmed down over the next few hours anyway. Or maybe they’re just distracted by the pretty beads.

And, fine. If wearing the jewellery was really risk-free, then why not? But as the story at the start of this post proves, it is not. Any kind of string around a baby’s neck can become twisted, interfering with their breathing. Most necklaces claim to have some sort of “emergency release” mechanism so that they come apart when pulled, but this doesn’t always work.

Don’t fall for the marketing.

Ah, goes the argument. But it’s okay, because we only sell bracelets and anklets for babies. They don’t go around the baby’s neck. It’s completely safe!

No. Because I don’t care how carefully you make it: the string or cord could still break (especially if it’s been chewed), leaving loose beads to pose a serious choking hazard. Not to mention get jammed in ears or nostrils. Even if you’re with the baby, watching them, these sorts of accidents can happen frighteningly quickly. Letting a baby sleep with such an item is nothing short of asking for disaster, and no matter how good anyone’s intentions, babies do have a habit of dozing off at odd times. Will you really wake the child up to take off their bracelet? Every time?

In summary, don’t fall for the marketing. Amber necklaces may be pretty, but they’re not suitable for babies. The claims about succinic acid are completely baseless, and the risks are very real.


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The Chronicles of the Chronicle Flask: 2017

We’ve made it! Not only to 2018 (which was starting to look doubtful earlier in the year), but also to the Chronicle Flask’s 100th post. Which doesn’t seem that many, really, but since posts on here frequently run to 1500 words, that adds up to a rather more impressive-sounding 150,000 words or so. I mean, that’s like… half a Brandon Sanderson novel. Oh.

Anyway, it’s time for a yearly round-up. Here goes!

Last January I began with a post about acrylamide. We’d all been enjoying lots of lovely crispy food over Christmas; it was time to tell us about the terrible dangers of such reckless indulgence. The newspapers were covered with pictures of delicious-looking chips, toast and roast potatoes alongside scary headlines such as:  “Crunchy toast could give you cancer, FSA warns”. The truth was not quite so dramatic. Acrylamide does form when foods are cooked to crispiness, and it is potentially harmful, but the quantities which form in food are tiny, and very unlikely to cause you any serious harm unless you literally live on nothing but burnt toast. The FSA (Food Standards Agency) hadn’t significantly revised their guidelines, it turned out, but were in fact only suggesting that the food industry should be mindful of acrylamide levels in food and seek to reduce them as much as possible. That wouldn’t have made for quite such a good “your food is going to killllll you!” story though, I suppose.

In February the spikey topic of vaccination came up. Again. Vaccines are awesome. They protect us from deadly diseases. No, I don’t want to hear any nonsense about “Big Pharma“, and I definitely don’t want to hear how “natural immunity” is better. It’s not. At best, it might provide a similar level of protection (but not in every case), but it comes with having to suffer through a horrible, dangerous disease, whereas vaccination doesn’t. It ought to be a no-brainer. Just vaccinate your kids. And yourself.

It was Red Nose Day in the UK in March, which brought some chemistry jokes. Turns out all the best ones aren’t gone, after all. Did you hear about the PhD student who accidentally cooled herself to absolute zero? She’s 0K now.

April brought a post which ought to have been an April Fool’s joke, but wasn’t. Sceptics often point out that homeopathy is just sugar and water, but the trouble is, sometimes, it’s not. There’s virtually no regulation of homeopathy. As far as I’ve been able to establish, no one tests homeopathic products; no one checks the dilutions. Since a lot of the starting materials are dangerously toxic substances such as arsenic, belladona, lead and hemlock, this ought to worry people more than it does. There has been more than one accidental poisoning (perhaps most shockingly, one involving baby teething products). It really is time this stuff was banned, maybe 2018 will be the year.

In May I turned to something which was to become a bit of a theme for 2017: alkaline water. It’s not so much that it doesn’t do anything (although it really doesn’t), more the fact that someone is charging a premium for a product which you could literally make yourself for pennies. It’s only a matter of dissolving a pinch of baking soda (sodium bicarbonate) in some water.

June brought a selection of periodic tables because, well, why not? This is a chemistry blog, after all! And now we’ve finally filled up period seven they do have a rather elegant completness. 2019, by the way, has just been announced as the International Year of the Periodic Table of Chemical Elements, to coincide with IUPAC’s 100th anniversary and the 150th anniversary of Mendeelev’s discovery of periodicity (his presentation, The Dependence Between the Properties of of the Atomic Weights of the Elements, was made on 6th March 1869). Looks like 2019 will be an exciting year for chemists!

In July it was back to the nonsense of alkaline diets again, when Robert O. Young was finally sentenced to 3 years, 8 months in custody for conning vulnerable cancer patients into giving him large sums of money for ineffective and dangerous treatments. Good. Moving on.

August brought me back to a post that I’d actually started earlier in the year when I went to a March for Science event in April. It was all about slime, and August seemed like a good time to finally finish it, with the school holidays in full swing – what could be more fun on a rainy day at home than making slime? Slime was a bit of a 2017 craze, and there have been a few stories featuring children with severely irritated skin. But is this likely to be caused by borax? Not really. Turns out it’s actually very safe. Laundry detergents in general, not so much. In short, if you want to make slime the traditional way with PVA glue and borax, fill your boots. (Not really – your parents will be uninpressed.)

In September it was back to quackery: black salve. A nasty, corrosive concoction which is sold as a cancer cure. It won’t cure your cancer. It will burn a nasty great big hole in your skin. Do not mess with this stuff.

October carried on in a similar vein, literally. This time with a piece about naturopaths recommending hydrogen peroxide IVs as a treatment for lots of things, not least – you guessed it – cancer. Yes, hydrogen peroxide. The stuff you used to bleach hair. Intraveneously. Argh.

The puking pumpkin!

The end of the month featured a far better use for hydrogen peroxide, that of the puking pumpkin. Definitely one to roll out if, for any reason, you ever find yourself having to demonstrate catalysis.

November brought us, somewhat unseasonally, to tomatoes. Where is the best place to store them? Fridge or windowsill? Turns out the answer involves more chemistry than you might have imagined.

And then, finally, December. Looking for a last-minute Christmas gift? Why not buy a case of blk water? I mean, other than it’s an exorbitantly priced bottle of mysterious black stuff which doesn’t do any of the things it claims to do, and might actually get its colour from coal deposits, that is.

And that, dear friends and followers, is it for 2017! Happy New Year! Remember to be sceptical when the inevitable “deadly food” story appears in a few weeks….


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Black Salve BS

Historically, people weren’t always careful in the sun.

Summer is fast disappearing in the Northern hemisphere and with it, the sunshine. Which is sad, as we all love a bit of sun, don’t we? Even if it doesn’t always love us, particularly those of us with fairer skin. Sunburn is no fun, but these days we also understand that it’s worse than a couple of days of painfully peeling skin: too much sun exposure can cause cancer.

Unfortunately there’s a whole generation – indeed more than one – who didn’t grow up with parents constantly slathering on the factor 50 (easy-to-use transparent sunscreens with very high SPFs didn’t appear on the market until the 1990s). For some sunburn was a regular part of summer, and those people need to be particularly vigilant for changes which might signify something nasty is going on.

On the plus side, these types of cancer are very treatable, and the outlook is hopeful. Often, the growth can be removed by surgery or even cryotherapy with very little scarring. Even the most dangerous kind of skin cancer, malignant melanoma, has a ten-year survival rate of around 90% with appropriate treatment.

But there’s the key: appropriate treatment. If you notice changes in your skin, especially a mole which is changing in colour or shape, you must see a qualified doctor as soon as you can.

What you should absolutely not do is visit the Black Salve page on Facebook (which I am not linking to for reasons which will be come obvious). This page, so Facebook tells me, is followed by nearly 17,000 users. It features a cheery cover photo of a family holding a canoe over their heads, and its profile picture is a pretty white and yellow flower.

Sanguinarine is a toxic salt extracted from the bloodroot plant. It’s infamous for its ability to destroy animal cells.

It’s all very suggestive of a homely, traditional remedy. The sort of thing your grandma had in her medicine cabinet. Very safe and “natural“. But while black salve might be a traditional remedy, it is anything but safe. Most preparations contain bloodroot, a source of the toxin sanguinarine, which kills animal cells.

Applying bloodroot to the skin destroys tissues and causes the formation of a large, black lump of dead flesh. Eventually this mass, called an eschar, falls off, leaving varying degrees of damage behind (internal use is also not recommended: consuming bloodroot can cause vomiting and loss of consciousness).

Bloodroot is easy to buy. Back in May this year the Good Thinking Society reported that eBay had removed “listings for dangerous cancer ‘cure’” following an investigation. Those listings were for black salve, and this was, of course, very positive news. Except for one thing: whilst listings for black salve were removed (and remain absent), listings for bloodroot were not. At the time of writing, a quick search reveals several bloodroot preparations still for sale.

At the time of writing, bloodroot is easy to find on eBay. The listing confirms that this is prepared from the “rhizome of certified organically grown Sanguinaria conadensis plants”.

Why is this such a bad thing? Because it’s easy to find recipes for making homemade black salve with bloodroot online, and using such mixtures can have truly horrific consequences. Last year the story of a woman who applied it to a basal cell carcinoma on her nose was widely reported. The black salve paste she used did so much damage that she ended up with a large hole in her nose through which she could actually draw air. Photos and video are available online (be warned: it’s gruesome).

Many patients turn to black salve as an alternative to what they imagine will be disfiguring surgery to treat their cancer. But, as in this woman’s case, the paste can do so much damage that far more extensive, reconstructive, surgery is ultimately needed.

Black Salve usually contains bloodroot and, sometimes, zinc chloride – another skin irritant.

It won’t surprise anyone to learn that dermatologists don’t recommend black salve. It can do enormous damage to the surface of the skin, resulting in scarring and a high risk of infection, and it does kill cancer cells along the way. But there is no guarantee that all of the cancerous cells deep within the skin will be destroyed. As a result, patients who’ve attempted to cure themselves may end up with cancerous tissue hidden, and growing, beneath a scar.

In fact, exactly this happened to an otherwise healthy 76 year-old woman in 2006. Her case is described in detail in the journal Dermatology Practical Conceptual – in summary, she refused surgery on a small melanoma on her leg. Instead, she bought black salve on the internet and applied it. A few years later the cancer had spread to her lungs, liver and lymph nodes.

Some people even recommend using black salve on breast cancers but this is, if possible, even worse. It’s highly unlikely that the salve will reach the entirety of a tumour which is beneath the skin. It is likely to do some horribly painful and disfiguring damage along the way, though.

Black salve is particularly popular in Australia, which of course has some of the highest rates of skin cancer in the world. But it’s available in the UK too. One online “herbal medicine” site is openly selling various formulations at prices ranging from £25-£100. Ironically, they describe their “Herbactive” product as “chemical free” (it isn’t, nothing is) and then go onto boast that it “now has a stronger concentration of bloodroot”. Fantastic.

They also sell a product which contains zinc chloride along with bloodroot. They claim zinc chloride is safe. It isn’t. It’s well-known to be a skin irritant, and should never be left in contact with skin.

The Black Salve Facebook page is full of anecdotes and testimonials, but light on evidence.

The Black Salve Facebook page is packed full of anecdotes and testimonials from people who claim to have used these mixtures safely. It’s all interspersed, of course, with the usual “Big Pharma” conspiracy theories. Namely, that the “truth” is being suppressed because there’s “no money in it for the pharmaceutical [industry].”

The irony is that reconstructive surgery is incredibly expensive, and the antibiotics, painkillers and other drugs that are inevitably needed to treat black salve victims aren’t free, either.

Given that Facebook’s community standards page states that: “We remove content, disable accounts and work with law enforcement when we believe that there is a genuine risk of physical harm or direct threats to public safety.” one has to wonder why the Black Salve page is still there. People are actually posting pictures of physical harm. What more does Facebook need?

Please, don’t be tempted to use black salve, or anything containing bloodroot. If you think you have a skin tumour see a properly qualified doctor and follow his or her advice.

It might literally save your life.


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Hazardous homeopathy: ‘ingredients’ that ought to make you think twice

Would you take a medicine made with arsenic? Or deadly nightshade? Lead? Poison ivy?

You’d ask some serious questions first, at least, wouldn’t you? Is it definitely safe? Or, more accurately, are the odds better than even that it will make me better without causing horrible side-effects? Or, you know, killing me?

There ARE medicines that are legitimately made from highly toxic compounds. For example, the poison beloved of crime writers such as Agatha Christie, arsenic trioxide, is used to treat acute promyelocytic leukemia in patients who haven’t responded to other treatments. Unsurprisingly, it’s not without risks. Side-effects are unpleasant and common, affecting about a third of patients who take it. On the other hand, acute promyelocytic leukemia is fatal if untreated. A good doctor would talk this through with a patient, explain both sides, and leave the final choice in his or her properly-informed hands. As always in medicine, it’s a question of balancing risks and benefits.

Would you trust something with no proven benefit and a lot of potential risk? There are, it turns out, a swathe of entirely unregulated mixtures currently being sold in shops and online which clearly feature the substances I listed at the beginning. And more. Because they are all, supposedly, the starting materials in certain homeopathic remedies.

Homeopaths like to use unfamiliar, usually Latin-based, names which somewhat disguise the true nature of their ingredients. Here’s a short, but by no means comprehensive, list. (You might find remedies labelled differently but these are, as far as I can tell, the most common names given to these substances.)

If you haven’t heard of some of these, I do urge you to follow the links above, which will largely take you pages detailing their toxicology. Spoiler: the words “poison”, “deadly” and “fatal” feature heavily. These are nasty substances.

There are some big ironies here, and I’m not referring to the metal. For example, a common cry of anti-vaccinationists is that vaccines contain animal tissues – anything and everything from monkey DNA to dog livers. But many also seem to be keen to recommend homeopaths and courses of homeoprophylaxis – so-called “homeopathic vaccines” – which use bodily fluids such as pus and blood as starting materials.

Now, at this point I’m sure some of you are thinking, hang on a minute: aren’t you always telling us that “the dose makes the poison“? And aren’t homeopathic remedies diluted so much that none of the original substance remains, so they’re just placebos?

Yes, I am, and yes, they are.

Does anyone test homeopathic remedies to make sure there’s nothing in them….?

In THEORY. But here’s the problem: who’s testing these mixtures to make sure that the dilutions are done properly? And how exactly are they doing that (if they are)?

One technique that chemists use to identify tiny quantities of substance is gas chromatography (GC). This is essentially a high-tech version of that experiment you did at school, where you put some dots of different coloured ink on a piece of filter paper and watched them spread up the paper when you put it in some water.

GC analysis is brilliant at identifying tiny quantities of stuff. 10 parts per million is no problem for most detectors, and the most sensitive equipment can detect substances in the parts per billion range. Homeopathy dilutions are many orders of magnitude higher than this (30c, for example, means a dilution factor of 1060), but this doesn’t matter – once you get past 12c (a factor of 1024) you pass the Avogadro limit.

This is because Avogadro’s number, which describes the number of molecules in what chemists call a “mole” of a substance, is 6×1023. For example, if you had 18 ml of water in a glass, you’d have 6×1023 molecules of H2O. So you can see, if you’ve diluted a small sample by a factor of 1024 – more than the total number of molecules of water you had in the first place – the chances are very good that all you have is water. There will be none of the original substance left. (This, by the way, is of no concern to most homeopaths, who believe that larger dilutions magically produce a stronger healing effect.)

What if the sample ISN’T pure water after it’s been diluted?

If you carried out GC analysis of such a sample, you should find just pure water. Indeed, if you DIDN’T find pure water, it should be cause for concern. Potassium cyanide, for example, is toxic at very low levels. The lethal dose is is only 0.2-0.3 grams, and you’d suffer unpleasant symptoms long before you were exposed to that much.

So what if the dilutions somehow go wrong? What if some sample gets stuck in the bottle? Or on the pipette? Or a few dilution steps get skipped for some reason?

Are these largely unregulated companies rigorously quality-checking their remedies?

Well, maybe. It’s possible some producers are testing their raw materials for purity (ah yes, another question: they CLAIM they’re starting with, say, arsenic, but can we be certain?), and perhaps testing the “stability” of their products after certain periods of time (i.e. checking for bacterial growth), but are they running tests on the final product and checking that, well, there’s nothing in it?

And actually, isn’t this a bit of a conflict? If the water somehow “remembers” the chemical that was added and acquires some sort of “vibrational energy”, shouldn’t that show up somehow in GC analysis or other tests? If your tests prove it’s pure water, indistinguishable from any other sample of pure water, then… (at this point homeopaths will fall back on arguments such as “you can’t test homeopathy” and “it doesn’t work like that”. The name for this is special pleading.)

A warning was issued in the U.S. after several children became ill.

Am I scaremongering? Not really. There’s at least one published case study describing patients who suffered from arsenic poisoning after using homeopathic preparations. In January this year the U.S. Food and Drug Administration issued a warning about elevated levels of belladonna (aka deadly nightshade) in some homeopathic teething products. Yes, teething products. For babies. This warning was issued following several reports of children becoming ill after using the products. The FDA said that its “laboratory analysis found inconsistent amounts of belladonna, a toxic substance, in certain homeopathic teething tablets, sometimes far exceeding the amount claimed on the label.”

Now, admittedly, I’m based in the U.K. and these particular teething remedies were never readily available here. But let’s just type “homeopathy” into the Boots.com (the British high-street pharmacy) website and see what pops up… ah yes. Aconite Pillules, 30c, £6.25 for 84.

What happens if you search for “homeopathy” on the Boots.com website?

Have you been paying attention lovely readers? Aconite is…. yes! Monkshood! One of the most poisonous plants in the garden. Large doses cause instant death. Smaller doses cause nausea and diarrhea, followed by a burning and tingling sensation in the mouth and abdomen, possibly muscle weakness, low blood pressure and irregular heartbeat.

I must stress at this point that there is no suggestion, absolutely none whatsoever, that any of the products for sale at Boots.com has ever caused such symptoms. I’m sure the manufacturers check their preparations extremely carefully to ensure that there’s absolutely NO aconite left and that they really are just very small, very expensive, sugar pills.

Well, fairly sure.

In summary, we seem to be in a situation where people who proclaim that rigorously-tested and quality-controlled pharmaceuticals are “toxic” also seem to be happy to use unregulated homeopathic remedies made with ACTUALLY toxic starting materials.

I wonder if the new “documentary” about homeopathy, Just One Drop, which is being screened in London on the 6th of April will clarify this awkward little issue? Somehow, I doubt it. Having watched the trailer, I think it’s quite clear which way this particular piece of film is going to lean.

One last thing. Some homeopathic mixtures include large quantities of alcohol. For example, the Bach Original Flower Remedies are diluted with brandy and contain approximately 27% alcohol (in the interests of fairness, they do also make alcohol-free versions of some of their products and, as I’ve recently learned, they may not be technically homeopathic). Alcohol is a proven carcinogen. Yes, I know, lots of adults drink moderate quantities of alcohol regularly and are perfectly healthy, and the dose from a flower remedy is minuscule, but still, toxins and hypocrisy and all that.

There are cheaper ways to buy brandy than Bach Flower Remedies.

Amusingly, the alcohol in these remedies is described an “inactive” ingredient. It’s more likely to be the only ACTIVE ingredient. And since Flower Remedies retail for about £7 for 20 ml (a mighty £350 a litre, and they’re not even pure brandy) may I suggest that if you’re looking for that particular “medicine” you might more wisely spend your money on a decent bottle of Rémy Martin?


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A horrifying story: autism, miracle mineral solution and the CD protocol

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It looks lovely, but what IS it?

UPDATE: August 2016
I’ve written a summary of the key CD/MMS facts, which you will find if you follow this link. The numbers quoted are slightly different in places, as I revised my calculations based on new reading.


In my last blog post I wrote about people using apricot kernels, which contain amygdalin, as a cancer treatment. I explained how this chemical is toxic, and why eating apricot kernels could be extremely dangerous. For me, the scariest thing was that some groups were recommending that children eat them to ‘ward off cancer’. If an adult makes a bad decision about their health and treatment and consequently makes themselves more ill, or even dies as a result, it is of course a tragedy. People who prey on vulnerable individuals in this way should have the book thrown at them (and as I said in my last post, the owner and director of The Vitamin Service Ltd was given a six-month suspended prison sentence and his company was fined £10,000 for just this).

But when these dangerous treatments are given to children it’s worse. It’s much, much, MUCH worse, because children aren’t consenting. They haven’t read around the whole area and made a conscious decision, even if deeply flawed, to ignore the advice of medically-trained professionals in favour of following some other regime. They trust their parents. If their parents are somehow persuaded into giving them something dangerous and toxic, they don’t know any different.

This is why when I heard about miracle mineral solution (MMS, sometimes called ‘master mineral solution’, or ‘miracle mineral supplement’) and the CD Protocol I felt I had to write about it. Plenty of others have written about this and tried to warn people, but this is one of those times that I feel that the more people that talk rationally about this, the better. If someone is even a bit undecided and goes looking for more information, I want them to stand every chance of finding words like these rather than dangerous and inaccurate information. So here goes.

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This year’s controversial Autism One conference is in May.

MMS and CD have been around for a few years, but they’re in the public eye again at the moment because of the upcoming Autism One conference*. This is a conference that claims to provide education and support advocacy efforts for children and families ‘touched by’ an autism diagnosis. Which all sounds very worthy and positive, but the conference is deeply controversial for, amongst other things, its anti-vaccination stance, its support for highly questionable therapies, and the general assertion that we are currently suffering some kind of ‘autism epidemic’ caused by environmental factors (although it’s true that autism diagnoses have risen in the last few years, evidence suggests this has much more to do with better diagnostic techniques than anything else).

This year’s Autism One conference is at the end of May, and someone called Kerri Rivera is planning to speak there.

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Kerri Rivera

Rivera is one of the founders of CD Autism. Visit the CD Autism website, and you will see that their headline is “Autism: Avoidable. Treatable. Curable”, which ought to right a few alarm bells right there.

For those who might not be aware, autism is what’s called a neurodevelopmental disorder, which essentially means the brain doesn’t develop in the ‘normal’ way. In particular, children with autism struggle with social interactions and often engage in repetitive, compulsive behaviours such as flapping their hands or compulsively lining up objects. Autism symptoms usually appear gradually as the child gets older, but occasionally children get to one or two years old and then suddenly appear to go ‘backwards’ and lose their ability to communicate with the world around them. Exactly why this happens isn’t well understood. There is strong evidence that autism is primarily genetic, although it is possible that environmental factors (pollutants, certain drugs, etc) in the first 8 weeks of pregnancy might also trigger it. Either way, it looks like children are born with autism, even if their symptoms don’t appear until later.

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Children with autism often repetitively stack objects.

Autism has no cure, in the sense that there isn’t a medicine or a treatment plan you can follow which will make it go away (although Kerri Rivera would have everyone believe otherwise). Children, however, often improve as they get older. This is probably simply due to the fact that as children grow their brains develop, and the human brain is remarkably adaptable and flexible. Autism is a spectrum disorder, which means there’s a huge range in the level of impairments individuals suffer. Those at the more severe end of the spectrum will always need huge amount of support and will never achieve independence. On the other hand, you do very occasionally hear stories of children ‘recovering’ from autism and losing their diagnosis (although it’s more likely that they were misdiagnosed in the first place). Others are able to learn coping strategies as they get older and, while they will probably always find certain aspects of daily life difficult, are ultimately able to function quite successfully in society.

This is where it gets dangerous, because a condition that naturally tends to improve over time is an absolute gift to anyone pushing quackery. It means that no matter what you do (or don’t) do, you’ll always be able to find lots of positive testimonials from people who are happy to say “I tried this and it worked for us!”, “My son/daughter is so much better since we started this treatment!” They probably did see a genuine improvement. Thing is, they would have seen it anyway. The really worrying question is: might they have seen a bigger improvement without the treatment? 

And so briefly back to CD Autism’s tagline: “Autism: Avoidable. Treatable. Curable”. Scientific research suggests that autism probably isn’t avoidable; children are born with it. It’s not curable. There are strategies which can help children and their families to mange it (along the lines of speech therapy, social skills therapy, structured teaching and so on), but there’s no one, single proven ‘treatment’ for autism.

As a parent myself, I can empathise with parents who don’t want to believe these things. You gave birth to an apparently normal and healthy child, and then you’re told they have this condition which will affect them for the rest of their life. A condition which prevents them from interacting normally with you and the rest of your family, and one which other people will find very difficult to understand. People who don’t know them may very well think they’re rude and disruptive, and that you’re a weak parent who needs to start dishing out some discipline. Your child probably isn’t going get the education you hoped for them. They might not be able to live independently, or even ever communicate effectively. And there’s no cure for this, although some therapy might help. Your child might improve with time, but you’ll just have to wait and see how much. The uncertainty, and the stress of dealing with a child exhibiting such difficult behaviours, must be incredibly difficult to deal with.

So yes, I can understand why parents might not want to believe the science. The whole ‘big pharma has all the doctors on its payroll‘ thing must be very tempting. People like Kerri Rivera say they’re not making money from selling these treatments – they genuinely just want to spread the word – so that makes them trustworthy, right? There are many stories of other parents who’ve tried it, and they say their child improved. Surely doing something is better than doing nothing?

Well, no. No, it isn’t. Not in this case.

Have you been wondering what the CD in ‘CD Autism’ stands for? It stands for chlorine dioxide. The ‘CD protocol’ is the chlorine dioxide protocol and CDS (another common acronym) stands for ‘chlorine dioxide solution’.

CDS is made from MMS: ‘miracle’, or ‘master’ mineral solution. Minerals sound good for you, right? It’s important to eat your vitamins and minerals, isn’t it?

Let’s get down to the chemistry. Kerri Rivera has previously attacked her critics for not knowing any chemistry, and describing MMS and CDS inaccurately as a result. Well I know some chemistry. I have a BSc and a PhD in the subject, and I taught it for over ten years. So I reckon I know enough not to get this wrong.

On the CD Autism site Rivera quite openly states that this treatment is based around chlorine dioxide, ClO2, which is produced when two liquids – sodium chlorite and citric acid – are combined. I reiterate, this isn’t hidden in any way, they are quite open about it.

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Sodium chlorite, NaClO2

There is also an MMS Wiki, which explains in more detail exactly what is in this solution and how it’s ‘activated’. Here they are again quite open: MMS starts out as a 22.4% solution of sodium chlorite, NaClO2, along with some table salt (sodium chloride, NaCl) and other trace ‘neutral’ chemicals “such as sodium hydroxide, sodium carbonate and sodium bicarbonate”. I find it interesting that they use the term neutral, because sodium hydroxide certainly is not, and least not in the pH sense of neutral. Sodium hydroxide is a strong alkali with a pH of (depending on the concentration) somewhere between 11-14. Sodium bicarbonate and sodium carbonate are also alkaline, although not as strong as sodium hydroxide. That said, Wikipedia gives a pKa value for NaClO2 of 10-11, which I estimate ought, for a 22.4% solution, to produce a slightly acidic pH of about 5 (I was expecting it to be alkaline, so fellow chemists, please weigh in if you disagree – is the pKa value wrong?) I suspect that enough sodium hydroxide is added to keep the mixture slightly alkaline, since NaClO2 is stable in alkaline and neutral solutions.

To a chemist, this list of chemicals is not very surprising. Bleach solution, the stuff that you use to clean your bathroom, is made by mixing cold sodium hydroxide with chlorine gas to produce a mixture of sodium chloride, sodium chlorate(I) (NaClO, also sometimes called sodium hypochlorite), and water. Just to be absolutely crystal clear, bleach is not one single pure chemical, it’s a mixture. Household cleaning products have even more stuff added to them to make them more effective, so it’s probably not accurate to directly compare MMS to household bleach (this doesn’t mean they’re safe, please read on).

NaClO2, the stuff in MMS, is made slightly differently. But it still starts out with the reaction between chlorine and sodium hydroxide, except this time the solutions are hot. This produces yet another form of sodium chlorate, NaClO3, which can then be combined with a reducing agent to ClO2 and a mixture of other things.

NaClO and NaClO2 are not quite the same things, something which Rivera and other CD advocates have been keen to point out. MMS is not bleach, they say, no matter how the media reports it. They have similar formulas, yes, but ozone and oxygen (a favoured example) also differ by one oxygen atom, and it’s safe to breathe oxygen whereas it’s not safe to breathe ozone.

Well. Yes. The thing about ozone and oxygen is true. Yes. But does that imply that NaClO2 and chlorine dioxide are completely safe and inert? Er, no. NaClO2 is a strong oxidant and, although it may not technically be bleach, and isn’t as corrosive as the bleach solution in your bathroom cupboard, will still make you sick if you drink it. In particular, it could affect blood-oxygen transport and cause kidney failure, amongst other things. It has an LD50 of 350 mg/kg for rats. That means that if rats are fed 350 mg per kg of body weight, half of them will die. If we scale that up to a 20 kg child (very roughly 6-7 years old), that suggests that 7 grams is enough to kill. Remember that MMS is a 22.4% solution, which I assume means 22.4 g per 100 g of water.

That means that a 100 ml bottle of MMS might be enough to kill a young child three times over.

Perhaps this is disingenuous of me. CD Autism don’t advocate drinking whole bottles of MMS, they suggest using a few drops at a time. Perhaps it’s not fair to talk about toxicity in this way. After all you can, for example, perfectly safely take a small amount of paracetamol, but if you swallow a whole packet you’ll be in serious trouble.

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Chlorine dioxide, ClO2

But here’s the kicker, you don’t use MMS as it is. You ‘activate it’. Ah yes. This means mixing it with an acid solution, in particular citric acid, the acid found in citrus fruits such as oranges and lemons. When you do this, another chemical reaction happens, and ClO2 (chlorine dioxide), NaCl (sodium chloride) and water are formed, and the resulting pH ends up somewhere around the 2.5-3 mark (which is acidic). Now we have a chlorine dioxide solution, hence “CDS”.

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You really don’t want to swallow this stuff.

Let’s look at the safety data for chlorine dioxide. Chlorine dioxide IS a bleach. You see, they’re clever here. When denying the whole bleach thing, they say ‘MMS is not bleach’ (true), not ‘CDS is not bleach’ (which would be false). Chlorine dioxide is a strong oxidising agent and under EU classification it’s described as very toxic, corrosive and damaging to the environment. It’s LD50 is lower than NaClO2‘s (lower is bad, it means less of it will kill you). Under US classifications, it has an NFPA Health rating of 3, which means that “short exposure could cause serious temporary or moderate residual injury”. Compared to chlorine dioxide, NaClO2 is practically harmless.

Industrially chlorine dioxide is used to bleach wood pulp and in water purification, but because it’s toxic the US Environmental Protection Agency has set a maximum level of 0.8 mg/L for chlorine dioxide in drinking water. Now, it’s difficult to be sure exactly how much NaClO2 actually gets converted to ClO2 when it’s ‘activated’ by adding citric acid, but based on the only half-sensible balanced equation I could find and allowing for 70% conversion, I estimate conservatively that there would be about 9.5 grams of chlorine dioxide per 100 ml of activated master mineral solution (plus, don’t forget, there’s still some NaClO2 as well). That’s 95,000 mg/L, which is over one hundred thousand times the safe limit for drinking water. Even if the conversion is much less than I’ve estimated, I think we can be sure it’s well over safe limits.

And this, THIS, is the stuff that CD Autism are advocating that parents give to their children to swallow, and use in enemas.

Oh, but wait, I know what’s coming: you don’t use the whole solution in one go. You use a few drops at a time. Fine. How many drops? Well, there are different ‘protocols’ for different diseases, and for different stages of ‘treatment’, but to pick one fairly randomly I have seen someone mention 15 drops in 700 mls. Assuming a drop is 0.1 ml, I reckon that’s still about 200 mg/L. To reiterate, US safe limits are 0.8 mg/L. This is two thousand times safe limits. Even if some of my assumptions turn out to be over-generous, we are dangerously over safe limits. Do not listen when CD Autism tell you chlorine dioxide is safe because it’s used in drinking water, and because they’re only using small amounts. It is not. The amounts they’re suggesting are not, in fact, that small. This is highly dangerous and is highly likely to make your child seriously ill.

As the FDA warns, CDS can cause nausea, vomiting, diarrhoea, and symptoms of severe dehydration. There have also been reports of liver failure and severe kidney damage. CD Autism will say that the nausea and diarrhoea are symptoms of ‘detox’. It is just your body getting rid of ‘parasites’ and ‘toxins’ that have accumulated. It’s not. These are symptoms of acute toxicity. The chlorine dioxide is poisoning you, or worse, your child. These symptoms are a sign that you should stop before you do any more damage. If it’s not already too late.

The advocates CDS say that “the chlorine dioxide molecule has a chemical characteristic that changes and makes it selective for pathogens“. In other words, chlorine dioxide somehow ‘knows’ to only attack harmful microorganisms. It doesn’t – chemistry doesn’t work that way. Molecules aren’t capable of distinguishing one from another. Chlorine dioxide attacks and damages all the cells in its path, healthy and (possibly) harmful alike. And bear in mind that the bacteria in and on our bodies still aren’t that well understood. Our bodies contain a hundred bacterial cells for every single human one. Most of these bacteria are not harmful; in fact quite the opposite. They help us digest our food, bolster our immune system, and may be involved in all kinds of other processes (there was a even a paper recently suggesting that a change in gut bacteria had caused obesity in a patient). If you put something inside you, particularly straight into your gut in the form of an enema, which indiscriminately destroys pretty much everything in its path you could be literally be doing untold damage.

I mentioned parasites back there, and I just want to say a little more about this. CD Autism and their ilk are big on parasites. They believe that huge numbers of the population are infected with parasites, and that these are causing everything from cancer to autism. Their evidence for this mainly seems to come from enemas, where the ‘results’ of enema treatments (I’ll spare you pictures) show long, mucous-y strands. They say that these are worms, and sometimes call them ropeworms. Critics, on the other hand, say they are intestinal lining, removed by the harsh enema process.

Of course there are some real intestinal worms that actually exist. Roundworms and tapeworms for example. If you think you may have one of these, see a doctor – there are safe and effective treatments you can use to get rid of them without resorting to chlorine dioxide enemas. There is however no real evidence for the fictitious ‘ropeworm’. It was born out of the fevered imaginations of Nikolai Gubarev (who works, or possibly worked, in occupational safety in Russia) and Alex Volinsky (a mechanical engineer). The articles which describe their ‘discovery’ have never been published in any kind of peer-reviewed journal, although they are available online. And the very fact that they claim in one of their papers that people with “blood pH of 8-10” are more susceptible should immediately tell you everything you need to know about their (lack of) medical background. Someone with a blood pH in that range would be dead. Blood pH is strictly maintained by your body to be between 7.35 and 7.45. If it somehow gets out of that range you’re in serious trouble. A high blood pH is otherwise known as alkalosis, and results in muscle pain, muscle weakness and low blood calcium levels, and ultimately leads to seizures.

In short, don’t believe anyone that tells you that you’re infested with parasites, unless it’s a qualified medical doctor who’s had a sample of your stool properly analysed in a laboratory.

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Jim Humble, who started it all in 2006 with a self-published book on MMS.

Finally, I have focused mainly on autism in this piece, and that’s because I find the use of MMS and CDS in this area the most upsetting. These chemicals are being used on children, doing them terrible damage, and it’s completely out of their control. But I also want to point out that MMS and CDS are suggested for the ‘treatment’ of a whole raft of conditions. There are ‘protocols’ for everything from acne to cancer, and from mad cow disease (seriously) to yeast infections. This all seems to have started with a character called Jim Humble, who is in his own words “an inventor” (and not a scientist, and certainly not a doctor). There is an article all about him here, which I strongly recommend. Of particular note is the fact that more than one country has an arrest warrant out for him, regarding the poisoning and death of several people.

All of which means that there is a real danger that if you go looking for alternative treatments for pretty much anything, you might at some point run into someone selling MMS and CDS. And if you do, please, turn and run.

Update June 2015

On the 28th of May 2015 a man called Louis Daniel Smith was convicted, following a seven-day trial, of conspiracy, smuggling, selling misbranded drugs and defrauding the United States. Smith operated a business called “Project GreenLife” (PGL) from 2007 to 2011, which sold a product called “Miracle Mineral Supplement,” or MMS, over the Internet. The government presented evidence that Smith instructed consumers to combine MMS with citric acid to create chlorine dioxide, add water and drink the resulting mixture to cure numerous illnesses including cancer, AIDS, malaria, hepatitis, lyme disease, asthma and the common cold.

The jury convicted Smith of one count of conspiracy to commit multiple crimes, three counts of introducing misbranded drugs into interstate commerce with intent to defraud or mislead and one count of fraudulently smuggling merchandise into the United States.  The jury found Smith not guilty on one out of four of the misbranded drug counts. He faces a statutory maximum of 34 years in prison at his Sept. 9 sentencing.

For the full press release from the United States Department of Justice, just follow this link.

One down…

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* Here, and throughout this article where I have felt that I ought to link to websites associated with MMS proponents, I have used the Do Not Link service. This allows me to link to the relevant pages without giving them any kind of boost in search engine rankings. I urge anyone who writes anything of a skeptical nature to use Do Not Link. Let’s not help these guys out if we don’t have to.

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Please don’t eat apricot kernels

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Apricot kernels do not cure cancer.

I’ll admit, I’m no huge fan of ‘alternative medicine’, particularly the ones which have been thoroughly tested and shown over and over again to be entirely ineffective (yes homoeopathy, I’m looking at you).

At best these treatments don’t work, and at worst they delay or even stop people getting the effective treatment they need. In fact, there’s an even worse possibility: they stop people from people from giving their children the treatments they need.

Ok, if you’re old enough to make decisions for yourself, and you’ve tried conventional medicine and it hasn’t worked terribly well for your particular problem, and you’ve found that, say, acupuncture somehow does make your chronic back pain a bit better, even if it is just placebo effect, then hey, it’s your money (just please don’t recommend it to anyone else who hasn’t checked out all their other options first, ok?) Also, please, please read this fantastic article which explains clearly what cancer is and what, crucially, it isn’t.

But there has surely has to be a special corner of hell reserved for people who peddle so called ‘cancer-cures’.

Medicine has moved on a lot in the last few decades. Advanced screening techniques and treatments mean that many cancers are no longer the death sentence they once were. 50% of people (in England and Wales) now survive cancer for ten years or more, which is double the figure 40 years ago. But it’s easy for a well person to say ‘cancer treatments’. They are not always quite so easy to get through. Cancer treatments – namely surgery, radiotherapy and chemotherapy – can be brutal and frequently come with a raft of unpleasant side-effects, particularly chemotherapy.

There are some people who decide that the cure is worse than the disease and personally, I think that’s their choice to make. They should have the right to make that choice, so long as it’s well-informed.

So long as it’s well-informed.

But there are people out there who are making money from desperate cancer sufferers. They sell them ineffective treatments, discourage them (directly or indirectly) from seeking or accepting the treatment they really need, and sometimes even encourage those people to use toxic substances that are likely to actually cause even more harm.

People like Roger Shelley, owner and director of The Vitamin Service Ltd. Who has just been given a six-month suspended prison sentence and his company fined £10,000 for selling potentially toxic ‘vitamins’ he claimed could cure and prevent cancer.

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Amygdalin. It’s not a vitamin.

In particular, he was selling apricot kernels, which he claimed contained a ‘vitamin’ called B17. There is no such vitamin. The chemical in question is something called amygdalin (sometimes also referred to as laetrile, although they are not quite the same thing). See the picture of it? See that CN group down at the bottom? That’s a nitrile group. Potassium cyanide, the poison so beloved of crime writers, has the formula KCN, which is a compound made up of K+ and CN ions. It’s the cyanide ions, CN, that do the damage, by interfering catastrophically with the way the body uses oxygen. Now, nitriles (like amygdalin) don’t usually give up their cyanide ions easily and so aren’t, generally, anywhere near as toxic as compounds like potassium cyanide.

Unfortunately one of the enzymes in your small intestine helps to speed up the breakdown of amygdalin. Eating apricot kernels can cause severe toxicity and death due to cyanide poisoning. Yes, severe toxicity and death. Eating apricot kernels can kill you.

Before I cause mass panic I should probably point out that if you accidentally swallow one on a summer picnic, do not fear. It takes more than one to do any damage. The Food Standards Agency says it’s safe to eat one apricot kernel a day (they’re not saying you should, mind you).

The Vitamin Service was recommending that adults take 35 kernels every day. That IS enough to do damage. In fact, it’s above the dose that the FSA highlights as causing severe symptoms. In this statement, they site a case (point 15) of a woman who ate 30 apricot kernels and was later found comatose.

Worse, The Vitamin Service were also recommending that children take 10 kernels a day, “to ward off cancer”. For children, who have a smaller body mass than adults, even this smaller dose could be extremely dangerous.

Patients following The Vitamin Service’s regime reported symptoms of dizziness and cogitative problems. Classic symptoms of cyanide poisoning. When they reported these symptoms they were advised to reduce the amount for a few days before increasing it again, because the symptoms were due to ‘toxins’. Indeed they were, a toxic substance in the very products The Vitamin Service were selling.

To add insult to injury, they were charging in the region of £600 for these kernels along with a raft of other supplements they were recommending.

Shelly admitted to misleading customers and failing to warn them of the risks of B17. He has been given a six month suspended prison sentence, and his company is no longer selling apricot kernels as a cancer treatment. Which you’d think would be a good thing. Problem solved, no?

Just Google “B17 cancer” or “apricot kernels”. There are dozens of sites out there promoting it as a cancer treatment, and many still selling products. I won’t link to them here, I don’t want to give them the traffic. But it’s frightening. Please don’t believe these people. Please listen to your doctors, the real ones, the ones who have studied for years to learn everything they can about medicines and illnesses, and who have sworn an oath to “do no harm”.

There isn’t an easy, painless, magical cure for the cancer that the pharmaceutical industry is hiding from us for some reason. We all wish there was, but there isn’t. Cancer is horrible, but a lot of the time these days it’s beatable with the right treatments. And for those, you need a qualified doctor.

This story was covered in detail on The One Show on BBC One, on Monday 4th February 2015. You can watch the clip here: start at about 4:30 minutes.

There is also an excellent, very easy to follow, summary of the use of laetrile on the charity Cancer Research UK’s website. Read it here.

Finally, once again, if you’re in the unfortunate position of having been diagnosed with cancer, please, please read this excellent article. It really does help to understand the importance of targeted treatment.

Update 8th June 2015

When I wrote this post I focused on the eating of actual apricot kernels, and Roger Shelley’s conviction for selling them. It is worth pointing out that although apricot kernels definitely contain amygdalin, it’s impossible to be certain exactly how much any one kernel contains. This is always a risk with any natural product like this.

This means there is a big, huge, difference between eating apricot kernels – even a known number of them – and being exposed to a small amount of amygdalin in a controlled manner, say as part of a cancer treatment trial. In the first situation you have no idea how much of the chemical you’re being exposed to, and no one is monitoring you to check for ill effects (which you might, or might not, be aware of). It is true that otherwise toxic compounds are utilised in chemotherapy. Arsenic trioxide is used to treat a particular kind of leukaemia for example, but this doesn’t mean swallowing a teaspoon of it every day ‘just in case’ would be in any way sensible or safe.

In 2010 there was a Cochrane review of all the work previously done on amygdalin and laetrile. It reported that there was no clinical data to support the use of these substances to treat cancer, that the risk benefit of using these substances was unanimously negative (the risk of severe poisoning far outweighed any possible benefit), and recommended that no further clinical research into laetrile or amygdalin be conducted on ethical grounds.

However, since I wrote this post I have been made aware that some research is still ongoing. Well, science is about finding answers after all. For example, both of the following papers have been published since the Cochrane review:

Notice that these papers are about the specific chemical amygdalin, rather than apricot kernels. Note also that the second paper contains the words in vitro, which means outside of living organisms. In a test tube in a lab basically. This might be an interesting starting point, but it doesn’t necessarily mean that the same effect can be reproduced in living organisms which have inconvenient things like a digestive system to work around. Also, bear in mind that effective cancer treatments are highly targeted. Tossing unknown amounts of a substance into the general vicinity of a tumour and hoping it’ll have the effect you want is like throwing a bucket of paint at a piece of fine china and expecting to see pretty decorations appear.

Digestion is a particularly thorny problem with this substance: in the first paper I mentioned above (which is a review of the work done to date, rather than new research) the authors specifically point out that amygdalin is a lot more toxic when it’s taken orally than when it’s given intravenously (injected). The reason is that, as I mentioned in my original post, it’s broken down by enzymes in your small intestine. You’re going to have a hard time injecting apricot kernels; you pretty much have to eat them. Which is risky.

Also, while the authors do provide a lot of examples of the therapeutic benefits of amygdalin, they also point out that the (apparent) “antitumor mechanism of amygdalin is not completely clear”, that “clinical trials and large retrospective studies showed that [it] had no stable antitumor effect” and that adverse reactions have been reported, particularly following large doses.

So, while this compound might be a subject for further research, I stand by my original point. Don’t eat apricot kernels.

Further update, 20th August 2015

I’ve recently been made aware of a someone called Dr Philip Binzel and, what appears to be, a rather famous book called “Alive and Well“. In this book, Dr Binzel describes his treatment of cancer patients using dietary changes and supplements, including laetrile. I can find remarkably little information about Dr Binzel and his credentials beyond what’s described in this book. However, it is a matter of public record that he died on June 6, 2003. So take any source discussing his work in the present tense with a large pinch of salt.

Another recent post on this blog which may be of interest addresses this common complaint, “no one wants to research that; they can’t make any money from it!

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