Activated charcoal



Activated charcoal (or ) is a form of carbon processed to include large amounts of micro-pores, thus increasing the surface area available for adsorption or chemical reactions. The substance has one of the highest porosity characteristics of all known materials. 3g of activated carbon has the equivalent surface area of a football field.

Because of this ability to rapidly "soak up" substances, activated charcoal has a long established role in the medical profession as a treatment for ingesting toxins (e.g., many, but not all, oral poisonings). Unfortunately, the same ability has also found currency among the alternative medicine crowd for what woo-meisters consider "toxins".

History
In the late-18th century, the sugar-refining industry was looking for ways to improve the process to remove colored sugar impurities, which at that time involved passing sugar extract through beds of standard Research focusing on this goal resulted in the development of activated charcoal around the early 1800s. By processing charcoal using heat and/or chemicals, the adsorptive capabilities of the substance were dramatically increased due to the formation of large amounts of small, low-volume pores. Thus, activated charcoal is very useful for its abilities to filter out impurities (a role that activated charcoal ).

People quickly realized that the super-adsorptive properties of activated charcoal had applications in emergency rooms: in case of suspected drug overdose or poisoning, activated charcoal is administered orally to bind the toxins before they have a chance to be absorbed into the bloodstream. It is considered a "fairly invasive" way to manage acute poisoning, but the medication is on the. It certainly beats the alternative for overdose treatment, which involves shoving a tube the size of a garden hose up the patient's nose to pump the stomach out; some addicts who've been through this will, upon the arrival of EMTs, offer to mix the activated charcoal themselves.

Although activated charcoal has occasionally sprung up in alternative medical circles in the past, popular interest in activated charcoal picked up in 2014 when Gwyneth Paltrow (of Goop.com infamy) started mentioning various activated charcoal drinks on her website. Interest then really took off when celebrity revealed in a blog post in 2016 that she regularly drank "Charcoal Lemonade" to "feel cleansed and energized throughout the day." Since then, activated charcoal has become a staple ingredient in websites promoting the more bullshit side of "wellness".

As a detox supplement
Claim

"It is wonderful for cleansing the intestines. It is great at binding to toxic gases, Candida, parasites and other physical impurities and at rendering them harmless. Bloating, flatulence and constipation are relieved... It is estimated that daily use of activated charcoal reduces the toxic load in the human body by over 60%."

"Activated charcoal can be used to treat skin ailments, diarrhoea, bad breath, constipation and body odour. It can be used as a poultice to treat insect stings, mushroom poisoning, poison ivy, cholera, dysentery, bites and inflammation. It can also be used to treat snake bites in an emergency. Babies born with jaundice have been known to be treated with activated charcoal as well."

The science

There are a couple of studies that suggest activated charcoal can possibly treat such symptoms as and gas or bloating (though other studies fail to even find benefits for this claim.) In some countries, a treatment that combines activated charcoal,  and  is marketed under the name of Carbosymag for the treatment of gas and bloating. (However, even this treatment is poorly studied, and was not recommended in a 2017 consensus survey on treatments due to lack of evidence.) There is not enough data presently to make a sound judgement about activated charcoal's ability to help with these symptoms.

In the 1980s, there were a few studies concerning the effects of activated charcoal on and. While some trial results showed encouraging results, other studies showed no effects. The few studies so far were done with only a small, preliminary trial size; the data is not sufficient to draw any conclusions at this time.

Activated charcoal, particularly silver impregnated activated charcoal, is sometimes used in wound management, primarily for odor absorption (with the anti-bacterial properties of silver helping to prevent reinfection.) There is no evidence that activated charcoal would be useful for any topical treatments of poison ivy or insect or snake bites.

A small study looked at using activated charcoal for the treatment of neonatal however (even after considering the fact that this is preliminary data only) this was evaluated using activated charcoal as a supplement to the accepted medical treatment for neonatal jaundice,

All other health claims lack any solid evidence at all for any benefits. Furthermore, the problem with activated charcoal is that it doesn't exactly distinguish between what is "toxic", and what is not. Thus, activated charcoal can prevent your body from digesting food and absorbing beneficial nutrients, and can make medications and supplements much less effective. It can also cause nausea, diarrhea or constipation, black tongue, and black stools. While probably not terribly toxic in most cases, there are no studies to date looking at the effects of long-term use at the levels likely to be present in "detox" products. There is one case recorded where a man who hoped to detoxify his body with an activated charcoal supplement actually ended up activating a case of -— he recovered by simply no longer taking the supplement.

Activated charcoal doesn't absorb all orally ingested toxins. One of the toxin categories activated charcoal performs poorly with is organic a category that happens to include ethanol. Ethanol simply absorbs too rapidly in the stomach for activated charcoal to be effective. Studies also indicate that activated charcoal performs poorly as a hangover prevention "pre-treatment". So while it is indeed possible to buy a purported "hangover cure" in your supplements store with activated charcoal and "Electrolytes for Faster Recovery!", don't expect any benefit other than placebo.

As a toothpaste
Claim

Activated charcoal toothpaste is being sold by several brands as a "naturally formulated" way to whiten teeth, with ingredients that are both "clinically proven by real geeks to safely whiten and polish teeth" and are "hipster approved, vegan, and certified natural by Europeans".

The science

Activated charcoal is an abrasive substance, so it does actually remove stains on teeth. However, in a study comparing multiple abrasive materials commonly used in tooth-whitening toothpastes, activated charcoal achieved only mid-grade performance compared to microbeads, hydrogen peroxide, and blue covarine.

Asides from efficiency, the problem here is that activated charcoal (given the lack of testing) potentially fares poorly compared to other tooth whiteners when it comes to product safety. There are concerns that activated charcoal might be too abrasive to your teeth's enamel, due to a lack of standardization and studies that would give some guidance on the optimal activated charcoal source and particle size for whitening purposes. One study expressed concern, for instance, that the fine charcoal powder "may become embedded in defects such as margins or cracks present on older dentition."

Furthermore (speaking of ingredients "approved by geeks"), fluoride — considered the gold-standard ingredient when it comes to prevention — is often not present in many of these formulas… probably in part due to various fluoride conspiracy theories that often are present in movements aligned with "natural" wellness.

As charcoal is (as noted above) excellent at absorbing odors, one area that has been postulated where charcoal might show some effectiveness, is in controlling bad breath. However, this notion is only speculative at this point.

As a beauty treatment
Claim

Activated charcoal "works like a magnet to thoroughly cleanse and enhance the skin" and can help "zap zits, banish blackheads, shrink pores, and leave skin with a radiant, well-rested glow".

The science

Although at least in this case it "looks cool, (is) inexpensive, and (is) not harmful", there just isn't a lot of studies on whether the beneficial claims skin care companies using activated charcoal are making are accurate. Many beauty products with activated charcoal use it simply as a supplement (and a marketable selling point) to already-proven ingredients (such as for ).

Carbon-ated food and drinks
Not content with simply being a "detoxifying" dietary supplement, activated charcoal for a time became Instagram-chic to add to foods, due to its ability to color foods mixed with it in a trendy, "suitably Goth" black color. Trendy hip restaurants gained notice for mixing activated charcoal in everything from lattes to burger buns to ice cream to pizza. Mixologists in some urban locations rushed to create their own activated charcoal-infused cocktails.

The does not recognize activated charcoal as an approved color additive, and thus considers any food colored by activated charcoal as adulterated. (The FDA recognizes activated charcoal as in its role in  water, wine, and various foods). Concerns with its role as a food colorant include the difficulty of determining if the source of carbon is safe (e.g., if there are known toxic impurities in the original source material), the unknown effects of chronic consumption, and the potential for the presence of (which are known to be carcinogenic).

DIY Activated Charcoal
Several sites, particularly in the "prepper" community, contain documentation of making "activated charcoal" at home using a source of carbon, heat, and chemicals such as calcium chloride. Surprisingly, these recipes are not entirely bullshit: in 2012, researchers at seeking to produce a low-tech, inexpensive version of activated carbon (for water filtration purposes in low-income nations) explored using various chemical activation methods (with easily obtainable, low-cost chemicals ranging from calcium chloride to table salt) on burnt coconut shells. The results were encouraging; however, the research paper noted that the activated charcoal produced by this process has only 1/6 the adsorption capability of commercially-produced activated charcoal.