by Steven Novella via NeuroLogica Blog
A new study out of Australia looked at 26 different Traditional Chinese Medicine (TCM) products purchased from stores. They performed three types of analysis: heavy metal screening, toxicological analysis, and DNA sequencing. They found that 92% of the products tested had at least one type of contaminant.
This adds to a growing list of studies and revelations about how poorly the supplement industry is regulated, and raises further concerns about the overall quality of herbal and supplement products.
A 2008 study found that about 20% of ayurvedic herbal products contained heavy metal contamination, often at levels high enough to be toxic.
A 2013 study published in the BMC found that:
“Although we were able to authenticate almost half (48%) of the products, one-third of these also contained contaminants and or fillers not listed on the label. Product substitution occurred in 30/44 of the products tested and only 2/12 companies had products without any substitution, contamination or fillers.”
A 2014 study published in JAMA found that half of the product recalled by the FDA for being adulterated with banned drugs were dietary supplements, including up to one third of products purchased online. Further, when the FDA followed up they found that 6 months after they had issued a recall for adulterated supplements, two-thirds were still on the market and still contained the banned drugs.
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by Yau-Man Chan via Skepticblog
I am not a medical doctor and I don’t even play one on TV! So how am I qualified to write about Chinese medicine? Well because I grew up with it! Is that really good enough? Yes, and every Chinese who grew up in a Chinese household in a Chinese community are inculcated with knowledge about Chinese medicine and how it works. Like any other Chinese kid growing up, when I was sick my mother could quickly diagnose my illness and if she couldn’t, she could turn to her mother or aunts or other higher authority figures. In more severe cases, there’s always the guy selling herbs. No formal training is required. By osmosis, we were all supposed to have absorbed medical knowledge and know what foods – plant/animal parts would be good medication for whatever ailed us. I now live in a region of the U.S. very much enamored with eschewing Western evidence-base medicine for herbal treatments, acupuncture, and other Traditional Chinese Medicine (TCM) cures. I can usually provoke shock and jaw-dropping silence when my response to questions about TCM is that I want nothing to do with it when it comes to the health and well-being of my family. The two primary arguments in favor of TCM involve the classic logical fallacy of argument from antiquity and conspiracy theory about the evil intents of “Big Pharma. I will confine the rest of this blog to discussing the totally unscientific and perhaps even anti-scientific origins of TCM and leave debunking the Big Pharma Conspiracy
to my fellow skeptics.
The argument from antiquity in favor of TCM usually goes like this: it’s been around N-thousand years (replace N with your favorite integer between 1 and 5) and so it must have worked well! The truth of the matter is that TCM has no scientific basis and has been developed over the years on a foundation of very flawed understanding of the human anatomy and physiology. Historically, the pathetically low cure-rate of diseases plaguing the Chinese population with access only to TCM resulted in the evolution of a hyper-superstitious culture bent on seeing ghosts and goblins around every corner and behind every bush, too ready to take another life away. The inefficacy of their medical treatments throughout history, in my opinion, is responsible for the Chinese culture’s obsession with superstitions associated with maintaining good health and longevity.
The list of superstitious do’s and don’ts are especially long when it came to childbirth, prenatal and postnatal care. Please note that I am not talking about ancient history or even 100 years ago – I am talking about the persistence of these superstitions today in very modern Chinese communities in Hong Kong, Singapore, Taiwan and big modern cities in China.
To understand TCM, you do not need to understand chemistry, biology, anatomy or physiology because the foundation of TCM has nothing to do with them. You need instead to understand Taoism and Confucianism, as these philosophies are the founding principles of TCM. I will expend some ink here to explain these two very powerful underlying influences on Chinese society which gave rise to their understanding of the human body and the attendant medical fallacies.
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