Flowers of the bloodroot plant, Sanguinaria canadensis. You’re welcome, I could have used a very different image (warning: gross bordering on horrifying; click on image to see it).
Cervical dysplasia is a precancerous condition picked up by Pap smears. It is most often caused by human papillomavirus (HPV) infection. Mild cases may resolve spontaneously and can be followed by observation with frequent Pap smears, but cervical dysplasia can progress to cancer. The standard treatment is to remove the abnormal cells with a cone biopsy (using a knife) or a Loop Electrosurgical Excision Procedure (LEEP) using a wire loop heated by electricity. Those procedures not only treat the disease, but they provide a pathology specimen that can be examined to rule out more serious or invasive disease. Both LEEP and cone biopsy are 85-90% effective in removing all the abnormal cells. If cancer is suspected, a cone biopsy is preferable because LEEP may damage the edges of the specimen and make it more difficult to interpret. Otherwise, LEEP is often preferred because it is less expensive and doesn’t require anesthesia or an operating room. I have discussed misguided attempts by alternative medicine practitioners to treat cervical dysplasia before.
Surgery is often perceived as scary and not “natural,” so it’s not surprising that a “natural” treatment has been devised to replace surgery. Escharotics are corrosive salves that get their name from the thick dry scab that they can produce called an eschar. The “natural” escharotic treatment alternative for cervical dysplasia involves applying a solution of bloodroot (Sanguinaria canadensis) and zinc chloride. They claim that the solution selectively kills abnormal cells of the cervix while leaving healthy cells unaffected. That claim is almost certainly false, and the efficacy and safety of escharotic treatment has not been properly tested or compared to conventional treatment. (more…)
One of the greatest triumphs of marketing over evidence was the incredible rise of vitamin supplement use in the 20th century. Supplement makers successfully created a “health halo” around vitamins, and taking your vitamins became a virtue, something mothers told their children to do. The evidence, however, does not tell such a simple story.
In recent years it has become increasingly apparent that there are unintended consequences to taking vitamin supplements, and in fact there may be a net negative health effect. This is especially true for those who are healthy and don’t need vitamins, and for those who exceed the recommend dosages.
A recent review of the last 20 years of literature on the subject, presented at the American Association for Cancer Research 2015 meeting, found an overall increased risk of cancer among vitamin users. Dr. Tim Byers presented the study, which echoes the result of a 2012 review that he and others published. He specifically refers to two famous studies showing an increased risk of cancer from vitamins.
The 2011 SELECT trial found an overall increased risk of prostate cancer among men taking vitamin E. (more…)
Wile E. Coyote or Dr. Henry Miller? You be the judge!
Those of you who read my not-so-super-secret other blog (or who follow the news) familiar with this, but I feel that what happened over the last couple of weeks with respect to a man to whom I like to refer as “America’s Quack” is worth posting right here, in modified form.
Last week, a group of ten doctors led by Dr. Henry Miller, most of whom were affiliated either with the Hoover Institution or the American Council on Science and Health (ACSH)—or both—wrote a letter to Lee Goldman, MD, the Dean of the Faculties of Health Sciences and Medicine at Columbia University complaining that Dr. Mehmet Oz shouldn’t be faculty at Columbia University because of his “disdain for science and for evidence-based medicine, as well as baseless and relentless opposition to the genetic engineering of food crops” and “an egregious lack of integrity by promoting quack treatments and cures in the interest of personal financial gain.” The letter produced a fair amount of media attention a week ago. I originally mildly approved of it, but over the course of a few days after the letter was released, my opinion on it soured. The reasons were several and included a profound distaste for threatening letters sent to a person’s employers, admittedly based in part on my own experiences having been at the receiving end of such intimidation tactics, as well as a concern that the letter had been written with no clear purpose behind it other than as a publicity stunt to embarrass Dr. Oz and Columbia. When I learned that Dr. Oz was planning to answer the letter on his show this week, there were predictions that this particularly bone-headed publicity stunt would backfire spectacularly. And it did.
Bold moves from the New York State attorney general’s (AG) office are shaking up the supplement industry. In February, the AG accused four retailers (GNC, Target, Walmart, and Walgreens) of selling supplements that failed to contain their labelled ingredients. Using a testing method called “DNA barcoding“, the AG’s office concluded that few of the products it tested actually contained the labelled ingredient, and some contained undisclosed ingredients. It demanded that they stop the sale of those products. All four retailers complied.
When the recall occurred, I noted that the AG may not have had an airtight case: manufacturers and other critics challenged the AG’s methodology, claiming that DNA barcoding was unvalidated, inappropriate, and insufficient. They also stated that the DNA may not survive processing, so the absence of DNA didn’t imply a lack of the original product. Some claimed that the “contaminants” that AG found could have been acceptable fillers. The Attorney General refused to release further information about the testing methods it used, raising further questions about its validity. (more…)
Another kind of coffee pyramid scheme. Largest pyramid of coffee cups from the India Book of Records.
When my husband was helping a friend with a project at the house of someone he didn’t know, the lady of the house gave him an earful about the health benefits of the coffee sold by Healthy Habits Global (HHG), a multilevel marketing (MLM) enterprise for which she is a distributor. She sent him home with samples and a brochure with a long list of health claims. She told him she could provide lots of testimonials, and there was a wealth of evidence for her products on PubMed.
Before believing any health claims, especially from an unknown source, it is only prudent to examine the evidence. I consulted the company website, PubMed, and other sources; and I learned that the company’s advertising was full of false information and the whole rationale of the products was questionable. I am not persuaded that HHG coffee has any health benefits. It appears to be just another in a long line of gimmicks used by MLM businesses to sell untested, usually ineffective “health” products to gullible consumers who have little knowledge of science. (more…)
Coming soon, to a chiropractor’s office near you?
Chiropractors are once again engaged in intra-fraternal warfare over the chiropractic scope of practice, a saga we’ve chronicled before on SBM. (See the references at end of this post.) Every time it looks like the warring factions have buried their differences, they come rising to the surface like zombies.
The International Chiropractors Association (ICA), representing the “straight” faction, wants chiropractic to continue as a drugless profession. They are happy to detect and correct subluxations, thereby removing “nerve interference” and “allowing the body to heal itself” in the tradition of Daniel David Palmer. But the American Chiropractic Association (ACA) has bigger fish to fry.
This time, the ICA is upset that the ACA House of Delegates up and decided to establish a “College of Pharmacology and Toxicology,” which would operate under the auspices of the ACA Council on Diagnosis and Internal Disorders. The ACA’s announcement of the “College” is rather vague on details:
The purpose of the College is to further educate the chiropractic profession on clinical matters related to the widespread use of both prescription and over-the-counter medications and nutritional supplements.
I e-mailed the ACA several days ago asking for more information but have yet to receive a reply.
The ICA sees this move as yet another attempt by:
forces at work within some organizations actively promoting incorporating drugs into the chiropractic scope of practice.
There was a half-page ad in my local paper, thinly disguised as a “Special Report” by a Health and Fitness Editor, for a new fat-melting pill that “could put diet industry out of business by 2016.” I have seen a lot of ridiculous ads for weight loss products, but this one takes the cake. It’s arguably even worse than the one that proclaimed “we couldn’t say it in print if it wasn’t true” and then proceeded to say things in print that weren’t true.
It’s called Shred360. Here are some of the claims:
- It shook up the fitness industry because it DOUBLES your fat-burning potential.
- It allows anyone to LOSE INTENSE AMOUNTS OF FAT without grueling workouts or tasteless diet foods.
- It breaks your fat cells apart and disintegrates them, even while you sleep.
- Speeds your metabolism by 43%.
- It vaporizes fat without effort.
- Its proprietary blend of 16 potent ingredients is scientifically proven.
- Burns stored fat through thermogenesis and lipolysis.
- Increases energy and mental clarity almost immediately – guaranteed.
- Fools your body into feeling full: the ultimate appetite suppressant.
- Unconditionally guaranteed to make every surplus bit of your unwanted fat disappear effortlessly.
- Analysts think it will put Jenny Craig and Weight Watchers out of business by 2018 (which doesn’t even make sense if it has already put the entire diet industry out of business by 2016).
- You can eat like a normal person, skip the gym, and lose the fat you want while you sleep.
- Produced under highly controlled environmental conditions in small batches, so supplies are very limited.
- Free samples available for 100 customers – don’t wait to call.
A screenshot from the Shred360 product website. Lots of claims!
It’s been a while since I discussed medical marijuana, even though it’s a topic I’ve been meaning to come back to since I first dubbed medical marijuana to be the equivalent of herbalism and discussed how the potential of cannabinoids to treat cancer has been, thus far, unimpressive, with relatively modest antitumor effects. The reason I refer to medical marijuana as the “new herbalism” is because the arguments made in favor of medical marijuana are very much like arguments for herbalism, including arguments that using the natural plant is superior to using specific purified cannabinoids, appeals to how “natural” marijuana is, and claims of incredible effectiveness against all manner of diseases, including deadly diseases like cancer, based on anecdotes and testimonials. Now, as I pointed out before, not only am I not opposed to the legalization and regulation of marijuana for recreational use, even though I’ve never tried it myself, but I support it. What I do not support are claims for medical effects that are not backed up with good scientific evidence, and for medical marijuana most claims fall into that category. That’s why I tend to view medical marijuana as a backdoor way to get marijuana legalized. Personally I’d rather advocates of marijuana legalization drop the charade, argue for legalization, and stop with the medical nonsense.
The last time around, I discussed the evidence supporting claims that “cannabis cures cancer” and found them to be wanting based on science. I didn’t however, discuss the “cannabis cures cancer” testimonial machine that drives the claim that marijuana is useful for treating cancer; at least, I only touched on it by discussing briefly Rick Simpson, who claims that his hash oil cures approximately 70% of patients with terminal cancer and a published anecdote in which it was claimed that hemp oil was effective in treating acute lymphoblastic leukemia. (It wasn’t. At least, the evidence presented was not convincing.) Since then, I’ve wanted to revisit the topic of “cannabis cures cancer” testimonials, and, for whatever reason, now seems like a good time to do it.
The Wellness Warrior website now redirects to this photo.
Less than four days ago, a young Australian woman died of a very rare type of cancer. Most of my American and probably many of my European readers have never heard of her, but in Australia she had become quite famous over the last seven years as a major proponent of “natural health.” Her name was Jess Ainscough, but, like a certain American woman who has become famous for promoting dubious science, she was better known by her “brand” name. That brand name was The Wellness Warrior.
I first encountered Ms. Ainscough about a year and a half ago and have been intermittently following her career ever since. I’ve even blogged about her three or four times during that period over at my not-so-super-secret other blog. However, for whatever reason, even though it was my intent to write about her here on Science-Based Medicine, I never got around to it. Her death prodded me to write now, because her tale is a cautionary one important enough that I believe there should be something written here about it. Given that, those of you who follow my cubical other self will find some of this post repetitive. However, think of it as the first opportunity I’ve had to tell the story from beginning to end, along with a major deconstruction of the Gerson protocol. (Yes, unfortunately the Gerson protocol figures heavily in this story.) It’s a story that has led to the deaths of at least two people, and whose harm to others is impossible to quantify, given that the reach of The Wellness Warrior was long, at least in Australia.