A member of Quackwatch’s Healthfraud discussion list recently reported from a health fair:
One booth was a bit of a mystery for me: Brain Balance. “Is your child struggling with ADHD, dyslexia, autism, Asperger’s, Tourette’s, or other related disorders?” A quick glance at their website makes it seem that they may be legitimate.
No, a quick glance at their website makes it seem that they are not legitimate, and a more detailed examination confirms that initial impression. (more…)
From January through June of 2010 I wrote a column entitled “The Health Inspector” in O, The Oprah Magazine. Now, apparently, I have been fired; although they have not had the common courtesy to tell me so. The whole thing has been a bizarre, frustrating experience.
It started last fall, when I got an e-mail from Tyler Graham. He introduced himself as the new health editor for O, The Oprah Magazine, saying he had only been on the job for 2 weeks. He had read my work in Skeptic magazine and wanted me to write a column for O. I thought long and hard before accepting. I told Mr. Graham my opinion of Oprah and of her chosen medical expert Dr. Oz and why I was hesitant to associate my name with theirs, and he seemed to understand. Oprah has been widely criticized recently, even in the pages of Newsweek, for endorsing pseudoscientific and non-scientific health advice on her TV show. As for Dr. Oz, while he mostly gives good medical advice, he has appalling lapses into non-science-based practices like Reiki, and he has even invited energy healers into his OR to assist in open-heart surgery cases by waving their hands over the patients. I foolishly assumed Mr.Graham was trying to improve Oprah’s image by introducing more science and skepticism to the magazine. I decided to accept, for three reasons:
- It was a chance to get my name and a mention of the Science-Based Medicine blog before a large readership (O’s circulation is nearly 3 million).
- I could make sure that at least my one little corner of the magazine was scientifically rigorous.
- They were going to pay me. Not much, and I didn’t need the money, but you must understand that I had never before been paid a single penny for writing anything. My writing has been entirely pro bono. The idea of my writing finally being recognized as having monetary value was seductive.
The skeptical community was delighted to learn that the SkepDoc had infiltrated Oprahdom. One young man tweeted, “Dude, Hell just froze over!” I’m afraid the celebration was premature. (more…)
Despite quackademia, anti-vaccine propaganda, and other discouraging trends, the news is not all bad. A major HMO has taken a decisive action in support of science-based medicine.
Kaiser Permanente Mid Atlantic States and Mid-Atlantic Permanente Group recently announced the elimination of neck manipulation from their chiropractic coverage. The revised policy states,
Given the paucity of data related to beneficial effects of chiropractic manipulation of the cervical spine and the real potential for catastrophic adverse events, it was decided to exclude chiropractic manipulation of the cervical spine from coverage.
Their decision was applauded by some but was predictably attacked by chiropractors. (more…)
Age-related macular degeneration (AMD) is one of the major causes of visual impairment in the elderly: it affects central vision, impairing the ability to read and recognize faces while preserving some peripheral vision. It comes in two forms: wet and dry. Dry macular degeneration is by far more common, but wet macular degeneration, involving the proliferation of blood vessels, is more severe.
There is evidence that antioxidant vitamin supplementation may slow the progression of the dry type when it is already established and moderately severe, but the published evidence does not support the use of these supplements for prevention or for patients with early stages of the disease. Some people are using it for prevention, but there is concern that the risks might exceed any benefit. Of more concern, it appears that a manufacturer’s (Bausch & Lomb’s) advertising has gone way beyond the available evidence. (more…)
On the car radio, I have several times happened upon “infomercial” programs touting the benefits of testosterone replacement therapy for men, broadcast by doctors who specialize in prescribing the drugs. They have lots of wonderful stories about men who feel younger, happier, and more vigorous because of their macho remedies. It’s a tribute to the power of the placebo.
I have been reviewing John Brinkley’s goat gland scam for a presentation on medical frauds. In an era before the isolation of the hormone testosterone, Brinkley transplanted goat testes into human scrotums in an attempt to treat impotence and aging. We are more sophisticated today … but not much. Longevity clinics and individual practitioners are offering testosterone to men as a general pick-me-up and anti-aging treatment. Their practice is not supported by the scientific evidence. (more…)
Alchemy is alive and well! Yes, that medieval precursor of chemistry, that chimerical search for the philosopher’s stone and the transmutation of lead to gold. Modern alchemists have found the philosopher’s stone and are selling it and teaching people how to make it themselves out of dew and Celtic sea salt.
The philosopher’s stone apparently is an elixir of life that you have to take on a regular basis. According to Nicholas Collette, it “completely eliminates the pharmaceutical industries by curing EVERY disease, and opens the mind to it’s [sic] full potential.” It extends the life span, reverses the aging process, and opens the door to psychic power.
Instructions for making it are detailed on this website. It takes time and is complicated, but the starting ingredient is simple: morning dew. (more…)
More and more American women (1 in 200) are opting for home birth, and midwife-assisted home birth is common in other developed countries. How safe is it compared to birth in a hospital? A new study sheds some light on the subject. It was recently published in the American Journal of Obstetrics and Gynecology: Maternal and newborn outcomes in planned home birth vs planned hospital births: a metaanalysis, by Wax et al.
All the existing studies have flaws. It would be ideal to do a study where women were randomly assigned to home or hospital birth; that isn’t possible, so we have to fall back on studies that are possible. Just comparing home births to hospital births isn’t good enough, because high-risk births occur primarily in hospitals, and between 9% and 37% of planned home births end up with transfer to the hospital during labor and are converted into hospital births. Cohort studies comparing planned home with planned hospital births provide the best sources of data by intended delivery location. There have been several such studies, but the numbers were small and the results were inconclusive. This new study is a meta-analysis that combines the data into one large set for better understanding. (more…)
Glucosamine is widely used for osteoarthritis pain. It is not as impossible as homeopathy, but its rationale is improbable. As I explained in a previous post,
Wallace Sampson, one of the other authors of this blog, has pointed out that the amount of glucosamine in the typical supplement dose is on the order of 1/1000th to 1/10,000th of the available glucosamine in the body, most of which is produced by the body itself. He says, “Glucosamine is not an essential nutrient like a vitamin or an essential amino acid, for which small amounts make a large difference. How much difference could that small additional amount make? If glucosamine or chondroitin worked, this would be a medical first and worthy of a Nobel. It probably cannot work.”
Nevertheless, glucosamine (alone or with chondroitin) is widely used, and there are some supporting studies. But they are trumped by a number of well-designed studies that show it works no better than placebo, as well as a study showing that patients who had allegedly responded to glucosamine couldn’t tell the difference when their pills were replaced with placebos. The GAIT trial was a large, well-designed, multicenter study published in The New England Journal of Medicine that showed no effect in knee osteoarthritis. A subsequent study of hip osteoarthritis also showed it worked no better than placebo.
A new study shows that glucosamine works no better than placebo for osteoarthritis pain in the low back. It was published in the JAMA: Effect of Glucosamine on Pain-Related Disability in Patients with Chronic Low Back Pain and Degenerative Lumbar Osteoarthritis: A Randomized Controlled Trial, by Wilkens et al. (more…)
Over a year ago I wrote about The China Study, a book by T. Colin Campbell and his son based on a huge epidemiologic study of diet and health done in China. The book’s major thesis is that we could prevent or cure most disease (heart disease, cancer, diabetes, autoimmune diseases, bone, kidney, eye and other diseases) by eating a whole foods plant-based diet, drastically reducing our protein intake, and avoiding meat and dairy products entirely.
I noticed a number of things in the book that bothered me. I found evidence of sloppy citations, cherry-picked references, omission of data that contradicted the thesis, and recommendations that went beyond the data. I concluded:
He marshals a lot of evidence, but is it sufficient to support his recommendation that everyone give up animal protein entirely, including dairy products? I don’t think so.
The China Study involved 367 variables and 8,000 correlations. I said I would leave it to others to comment on the study design and the statistical analysis, and now someone has done just that. Denise Minger devoted a month and a half to examining the raw data to see how closely Campbell’s claims aligned with the data he drew from; she found many weaknesses and errors. (more…)
Wouldn’t it be great if we could find a way to prolong our lives and to keep us healthy right up to the end? Ponce de León never found that Fountain of Youth, but science is still looking. What are the chances science will succeed? How’s it doing so far?
In his new book The Youth Pill: Scientists at the Brink of an Anti-Aging Revolution, David Stipp tries to answer those questions. From the title of the book, I expected hype about resveratrol or some other miracle pill; but instead it is a nuanced, levelheaded, entertaining, informative account of the history and current state of longevity research. It makes that research come alive by telling stories about the people involved, the failures and setbacks, and the agonizingly slow process of teasing out the truth with a series of experiments that often seem to contradict each other.
Anti-aging can mean several things. Extending the average lifespan is not the same as extending the maximum life span. Extending lifespan is not the same as preventing the degenerative changes characteristic of aging. (more…)