Glucosamine and Chondroitin: Do They Really Work?

Glucosamine and chondroitin are widely used for osteoarthritis pain. My daughter even gives them to her elderly horse. Their popularity is puzzling, since the evidence from scientific studies indicates that they don’t work. Wikipedia has a useful survey of the history, studies, criticisms, and systematic reviews (https://en.wikipedia.org/wiki/Clinical_trials_on_glucosamine_and_chondroitin). It includes a long list of references. I

Diatomaceous Earth? No Thank You!

Would you eat this? It might look like a crunchy new breakfast cereal, but it’s a close-up of diatomaceous earth, the fossilized microscopic skeletons of diatoms. Diatoms are unicellular algae, one of the two major classes of the phytoplankton that constitute the bottom of the food chain in oceans and freshwater. Diatomaceous earth is a

The THRIVE Experience: Masterful Marketing, Short on Substance

One of the few things that aren’t in THRIVE products My daughter told me about the latest health fad among her group of acquaintances. She knows people who are spending $300 a month on the THRIVE program and claiming miraculous results. With a skeptic for a mother, my daughter knew enough to question the claims

Vegan Betrayal: The Myths vs. the Realities of a Plants-Only Diet

If vegans really followed these guidelines, they could get adequate nutrition; but all too often they don’t. NOTE: The original version of this book review was criticized for not making it clear when I was simply reporting the book’s content and when I was expressing support for one of its arguments. I have revised it

Book Review Lagniappe

Lagniappe, a word often heard in New Orleans, refers to a bonus or extra gift, like the thirteenth donut in a baker’s dozen. You may have noticed that I write a lot of book reviews. I read far more books than I review, and I have always loved to read about the experiences of doctors

Genius Java: Memory Boosting Coffee

My local newspaper is an unending source of amusement in the form of ads for questionable health products—ads that demonstrate clever marketing tactics aimed at scientifically illiterate and gullible readers. Perhaps it is a waste of time to critique them, but I like to think that consumers can be educated about the deceptive methods these

The Blood Cleaner: Invented by Ray Jardine

Imaginary germs awaiting imaginary electrocution by Ray Jardine’s Blood Cleaner device. I recently heard about a man who was planning a hike in a tick-infested area and thought he could avoid Lyme disease by using Ray Jardine’s Blood Cleaner. Ray Jardine is a well-known mountaineer, rock climber, long-distance hiker, and outdoor adventurer. A lightweight hiking enthusiast, he has

The Primo Vascular System: The N-rays of Acupuncture?

Is this a PVS structure or something else? Acupuncture meridians and acupoints are imaginary until proven otherwise. Anatomists have never been able to detect them by microscopy or autopsy, and they are not mentioned in anatomy textbooks. For decades, acupuncturists have been trying to prove that their pre-scientific belief system is grounded in scientific reality.

Therapeutic Touch Pseudoscience: The Tooth Fairy Strikes Again

When tested, therapeutic touch (TT) practitioners failed to detect the human energy field they thought they could feel. Experimental setup from Rosa et al., from JAMA, 1998, 279 (13) A study out of Iran titled “Therapeutic touch for nausea in breast cancer patients receiving chemotherapy: Composing a treatment” was recently published in the journal Complementary Therapies in

Uncertainty in Medicine

Medicine is an uncertain business. It is an applied science, applying the results of basic science knowledge and clinical studies to patients who are individuals with differing heredity, environment, and history. It is commonly assumed that modern science-based doctors know what they are doing, but quite often they don’t know for certain. Different doctors interpret

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