Yahoo News appears to have confused NaturalNews with actual news. It’s not. NaturalNews is the in-house propaganda organ for Mike Adams, whom I’ll introduce in a minute (although he needs no introduction for most readers here). A couple of recent examples:
A recycled story, over a year old, from NaturalNews, appearing on Yahoo News last week. It starts out as a fairly straightforward report of the Japanese’s governments suspending its recommendation if favor of the HPV vaccine pending further research, although government health officials were still standing by the vaccine’s safety. Actually, Medscape reported that the actual rate was 12.8 serious adverse side effects reported per 1 million doses, a fact not revealed in the NaturalNews story. These effects were correlated with the vaccine; there is no evidence of causation.
After this rather tame start, NaturalNews cranks it up to 11 and beyond, as David Gorski would say. Governments which still recommend HPV vaccinations “remain under the thumb of Merck’s vaccinations spell” even though Merck is “an organization of murderers and thieves.” A scary list of adverse events are described as “side effects of Guardasil” even though causation has not been shown.
Two days ago there was an “ongoing debate”? There is no ongoing debate about “whether or not vaccines cause autism” because there never was any credible evidence that vaccines cause autism and there still isn’t.
Typical example of a Vitamin K supplement.
Science is complicated. Simple concepts that appear at first to be obviously true or untrue usually turn out to be more nuanced than we thought. Newtonian physics was taken as “the truth” until we learned in the 20th century that it didn’t apply on cosmological or subatomic scales. Medicine and human physiology are more complicated than most people realize or want to believe. A case in point is the recent realization that vitamin K is not a single chemical compound, but a whole family of them, and that vitamin K2 has unique properties that vitamin K1 lacks.
Recently, there has been some interesting preclinical research on K2 that warrants further study to tease out its implications for human health, diet, and supplementation. There has also been a lot of hype that warrants taking its claims not with a grain but with a large bolus of salt. According to Canadian naturopath Kate Rhéaume-Bleue, author of Vitamin K2 and the Calcium Paradox:
- It could save your life
- It is missing from the modern diet
- It is the most important anti-aging nutrient for fighting wrinkles, Alzheimer’s, heart disease, osteoporosis and more
- It promotes straight, cavity-free teeth
- It is needed to get the benefits from calcium and vitamin D supplements; without it, those nutrients will increase the risk of heart attack and stroke
- It is the only vitamin known to prevent and reverse atherosclerosis
The old adage is still true: if something sounds too good to be true, it probably is. There is only weak evidence behind these strong claims. (more…)
About a month ago, I finally wrote the post I had been promising to write for months before about medical marijuana. At the time, I also promised that there would be follow-up posts. Like Dug the Dog seeing a squirrel, I kept running into other topics that kept me from revisiting the topic. However, over the past couple of weeks, the New York Times gave me just the little nudge I needed to come back and revisit the topic, first by openly advocating the legalization of marijuana, then by vastly overstating the potential medical benefits of pot (compare the NYT coverage with my post from a month ago), and finally this weekend by running a story lamenting the federal law that makes research into medical marijuana difficult in this country.
I stated my position on marijuana last time, which is that marijuana should be at least decriminalized or, preferably, legalized, taxed, and regulated, just like tobacco and alcohol. I also likened the cult of medical marijuana to the “new herbalism,” because it (1) vastly inflates the potential of medicinal uses of marijuana and (2) ascribes near-mystical powers to smoking or making extracts out of marijuana, rather than identifying and isolating constituents of the plant that might have medicinal value. All of this is very much like herbalism in alternative medicine. Indeed, promoting laws legalizing medicinal marijuana is such an obvious ploy to open the door to full legalization that some advocates don’t even bother to disingenuously deny it any more. Given that I tend to support legalization, as a physician this sort of deception irritates me. It also has consequences, particularly when overblown claims are made for what cannabis can do. Perhaps the best example of this is the claim that cannabis cures cancer, which pops up all over the Internet in memes such as the one in the image above.
Ladies, how would you like a chiropractor to deliver your baby? How about perform your annual well-woman exams, such as breast exam, bi-manual pelvic exam, speculum exam, recto-vaginal exam and Pap smear?
Sound out of their league? I thought so too. Way out. But, in some parts of the U.S., the law allows chiropractors to do all of these things and a great deal more. Including “adjusting” your basset hound.
A 2011 survey asked chiropractic regulatory officials whether their jurisdictions (all states, plus D.C., Virgin Islands and Puerto Rico, but I’ll refer to them collectively as the “states”) allowed 97 different diagnostic, evaluation, and management procedures. The results were recently reported and interpreted in the Journal of Manipulative and Physiological Therapeutics, in an article authored by Mabel Chang, DC, MPH, who was primarily responsible for the survey. Missouri allows the most procedures (92) and Texas, the fewest (30). A handful of states did not respond or did not respond to all questions, but the overall response rate was 96%. Results from a survey of Canada, Australia and New Zealand will be reported in a separate article. (more…)
In May, prompted by an uncritical article in the Daily Mail, the internet was buzzing about a company that was offering drinkable sunscreen. This is one of those game-changer health products that immediately garners a great deal of attention.
At first the claim seems extraordinary, but it is not impossible. It is theoretically possible to drink a substance that becomes deposited in the skin and absorbs or reflects UV radiation providing protection. However, upon reading the details it becomes immediately apparent that the product in question is pure snake oil.
The product is Harmonized Water by Osmosis Skin Care. In fact, UV protection is just one claim among many for the harmonized water line of products. The website claims:
- Remarkable technology that imprints frequencies (as standing waves) onto water molecules.
- Advances in the ability to “stack” thousands of frequencies onto one molecule.
- Revolutionary formula allows us to reverse engineer the frequencies of substances found in nature and/or the human body.
- Newly identified frequencies that have beneficial effects on the body.
A while ago, I wrote about how the Cleveland Clinic had recently opened a clinic that dispensed herbal medicine according to traditional Chinese medicine (TCM) practice. As regular readers of the SBM blog might expect, I was not particularly impressed or approving of this particular bit of infiltration of quackademic medicine into a major academic medical center, particularly given some of the amazingly pseudoscientific treatments espoused by the naturopath who was running the clinic. I also pointed out that, although herbalism is the most plausible (or perhaps I should say the least implausible) of modalities commonly associated with “complementary and alternative medicine” (CAM) or “integrative medicine”, it still exhibits a number of problems, the biggest of which is what I like to call either the delivery problem or the bioavailability problem. In brief, herbs, when they work, are adulterated drugs. The active ingredient is usually a minor constituent, embedded in thousands of other constituents that make up herbs, and it’s almost impossible to control lot-to-lot consistency with respect to content or active ingredients given how location, weather, soil conditions, rainfall, and many other factors can affect how the plants from which the medicines are extracted grow and therefore their chemical composition. To demonstrate the concept, I pointed out that it’s much safer and more predictable to administer digoxin to a patient who needs its activity on the heart than it would be for the patient to chew on some foxglove leaves, given that the therapeutic window (the difference between the doses needed to produce therapeutic effects and the lowest dose that will cause significant toxicity) is narrow.
Which brings me to medical marijuana, a.k.a. medical cannabis.
As regular readers of this blog know, Dr. Mehmet Oz had a very, very bad day last week, in which he received a major tongue lashing from Senator Claire McCaskill (D-MO) for the scientifically unsupported and irresponsible hyperbole he dishes out day after day on his syndicated daytime television show. Personally, I was tempted to pile on myself, but had to content myself with enjoying a couple of posts from a super secret blog in the run-up to the hearing (inviting Dr. Oz to testify is “like asking Al Capone to testify about U.S. tax policy or Stanislaw Burzynski about clinical trial design and ethics”), right after the hearing, and looking at the fallout from the hearing. I had even thought of asking my “friend” to combine the last two into an SBM-worthy post, but by the time that thought had occurred to me, the moment had passed.
One of the best takes I’ve seen on the whole “Oz-fest” last week comes from John Oliver on his HBO show Last Week Tonight With John Oliver. It’s a really long segment that takes up the last half of his show and features—don’t ask why—George R. R. Martin and a tap dancing Steve Buscemi. It’s hilariously spot on:
Most SBM readers will enjoy it. I promise. Oliver even correctly identifies Sen. Orrin Hatch (R-UT) and Tom Harkin (D-IA) as tools of the supplement industry and explains why dietary supplements in the U.S. are largely unregulated and the FDA and FTC have such limited powers to do anything about them preemptively.
Not Dr. Oz’s usual television audience
Dr. Mehmet Oz is one of the most well-known, and possibly the most influential medical doctor in America. The Dr. Oz Show is broadcast in 118 countries and reaches over 3 million viewers in the USA alone. When Oz profiles a product or supplement on his show, sales explode – it’s called “The Dr. Oz Effect”. Regrettably, Oz routinely and consistently gives questionable health advice, particularly when it comes to weight loss products, where Oz regularly uses hyperbolic terms like “miracle” for the products he profiles:
- (On green coffee extract) — “You may think magic is make-believe, but this little bean has scientists saying they found the magic weight-loss for every body type.”
- (On raspberry ketone) — “I’ve got the number one miracle in a bottle to burn your fat”
- (On Garcinia cambogia) — “It may be the simple solution you’ve been looking for to bust your body fat for good.”
Dr. Oz has profiled so many dubious health strategies that “The Dr. Oz Effect” more accurately refers to the wasted time, effort and finances of any consumer that actually follows his health advice and purchases the steady stream of “miracles” that Oz endorses on his television show. Not surprisingly, Science-Based Medicine is probably Oz’s most persistent and tenacious critic. It’s not just that he’s high profile – it’s that Dr. Oz is a bona fide physician who ought to know better, but chooses to ignore science in favour of hyperbole. It’s the antithesis of what a health professional should be doing. And this is the root of the Oz problem: Oz can give good advice, but he regularly combines it with questionable statements and pseudoscience in a way that the casual viewer can’t distinguish between the science and the fiction. So when Oz calls something a miracle – people listen. Even when miracles show up several times per year. (more…)
A correspondent asked me to look into the science behind the health claims for turmeric. He had encountered medical professionals “trying to pass turmeric as some sort of magical herb to cure us from the ‘post-industrial chemical apocalypse.’” It is recommended by the usual promoters of CAM: Oz, Weil, Mercola, and the Health Ranger (who conveniently sells his own superior product, Turmeric Gold liquid extract for $17 an ounce).
Turmeric (Cucurma longa) is a plant in the ginger family that is native to southeast India. It is also known as curcumin. The rhizomes are ground into an orange-yellow powder that is used as a spice in Indian cuisine. It has traditionally been used in folk medicine for various indications; and it has now become popular in alternative medicine circles, where it is claimed to be effective in treating a broad spectrum of diseases including cancer, Alzheimer’s, arthritis, and diabetes. One website claims science has proven it to be as effective as 14 drugs, including statins like Lipitor, corticosteroids, antidepressants like Prozac, anti-inflammatories like aspirin and ibuprofen, the chemotherapy drug oxaliplatin, and the diabetes drug metformin. I wish those claims were true, because turmeric is far less expensive and probably much safer than prescription drugs. It clearly has some interesting properties, but the claims go far beyond the actual evidence. (more…)
What AMD does to vision
Four years ago I wrote about the premature marketing of a diet supplement for macular degeneration before the results of a trial to test it were available. Now that we know the results of that trial, a follow-up post is in order.
Age-related macular degeneration (AMD) is a leading cause of blindness. The incidence increases with age; it affects 10% of people by age 66-74 and 30% of people by age 75-85. There are known risk factors including genetics and smoking, but there is no effective prevention. There are multiple diet supplement products on the market that are advertised as “supporting eye health.” Some are based on evidence from randomized, controlled studies; but the advertising hype goes beyond the evidence and tends to mislead consumers. There is evidence that supplementation may slow the progression of moderate to severe AMD, but there is no evidence that supplements are effective in milder disease or for preventing AMD from developing in the first place. (more…)