December 31st, 2010 by PeterWehrwein in Better Health Network, Health Tips, News, Research
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Does echinacea, the popular natural cold remedy, really work?
It depends on what you mean by “work.” Results [recently] reported in the Annals of Internal Medicine found that echinacea may reduce the length of a week-long cold by 7 to 10 hours and make symptoms a little less onerous. That can’t be characterized as a major effect, so many people may figure that the trouble and expense of echinacea just isn’t worth it (fortunately, side effects from echinacea don’t seem to be much of an issue.)
But others may decide that some benefit is better than none, and these results do fit with others that have left the door slightly ajar for echinacea having some effect as a cold remedy — a modest effect, but an effect, nonetheless.
A summary for patients published by the Annals summed up the situation nicely:
People who take echinacea to treat colds may experience a decrease in the length and severity of their cold symptoms but to such a small degree that they may not care about the difference. Although many studies of echinacea have been performed, researchers still disagree about its benefits in treating the common cold. This study is unlikely to change minds about whether to take this remedy.
Have you tried echinacea as a cold remedy? Has it worked? How do research findings, pro and con, affect your opinion of so-called alternative medicines?
Many of the echinacea studies, especially early on, were sponsored by companies making or selling the product. This study was supported by a grant from the National Center for Complementary and Alternative Medicine, which is part of the National Institutes of Health.
– Peter Wehrwein, Editor, Harvard Health Letter
*This blog post was originally published at Harvard Health Blog*
November 5th, 2010 by Toni Brayer, M.D. in Better Health Network, Health Tips, News, Research
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People are always on the search for “natural” ways to stay healthy and reduce cholesterol. Chinese red yeast rice supplements have been touted as a natural, safer way to lower cholesterol compared to statin medications. The yeast that grows on a particular type of rice contains a family of substances called monocolins, which lower cholesterol by inhibiting cholesterol production in the liver in the same manner as prescription statin drugs. Some studies have shown as much as a 15 percent drop in cholesterol.
All of this sounds good until you dig a little deeper. Supplements are not regulated by the Food and Drug Administration (FDA), and a new study in the Archives of Internal Medicine showed that different brands of red yeast rice supplements have dramatic variation in levels of active ingredients. Furthermore, some contained toxic manufacturing by-products. Read more »
*This blog post was originally published at EverythingHealth*
October 20th, 2010 by DrCharles in Better Health Network, Health Tips, Opinion, Research
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What is in a prenatal vitamin? Why do most doctors recommend them? Is there any evidence taking them is worthwhile? I decided recently that I would read through the ingredients of these vitamins, often touted as “essential vitamins and nutrients, crucial for the healthy development of your baby.” Hmmm. Does that mean eating traces of polyvinyl alcohol every day is beneficial?
The fine print ingredients of such brands as “One A Day”, “Centrum Materna”, “Rite Aid” and even the prescription only “Prenate Elite” are a confusing mess of milligrams, international units, RDA’s, and chemicals. As the makers of Centrum explain, “It is very challenging to formulate vitamins and minerals without the use of non-medicinal ingredients which serve to keep the product stable and to prevent the various ingredients from interacting.” They also find fault in the limited number of suppliers of the active ingredients in prenatal vitamins, and therefore claim substances like gelatin are difficult to avoid.
Let’s take a tour of the prenatal vitamin ingredient zoo. Read more »
*This blog post was originally published at The Examining Room of Dr. Charles*
September 13th, 2010 by David Kroll, Ph.D. in Better Health Network, Health Policy, News, Opinion, Research
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I’m only a monthly contributor here, but between being a Science Based Medicine (SBM) reader and having my own blogs, I often grow weary of the blind criticism that researchers and drug companies couldn’t care less about traditional folk medicines as drug products. My laboratory spends every single day working on natural product extracts in the search for compounds that may have selective effectiveness against cancer. So this is a bit of a sore spot for me.
Two [recent] papers from Cancer Prevention Research on the potential anticancer effects of a diabetes drug (see Nathan Seppa’s story here) remind me to tell the story of a Middle Ages European herbal medicine used to treat polyuria that gave rise to one of the most widely prescribed drugs in the world, metformin (Glucophage in the U.S.). Metformin, known chemically as a biguanide, dimethylguanide to be precise, traces its roots to the plant Galega officinalis. Known as goat’s rue, French lilac, or professor weed, this plant was shown to be a rich source of guanidine and a less toxic compound later called galegin or galegine (isoamyline guanidine). Read more »
*This blog post was originally published at Science-Based Medicine*
April 22nd, 2010 by David H. Gorski, M.D., Ph.D. in Better Health Network, Opinion, Research
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On Michael Specter, author of Denialism: How Irrational Thinking Hinders Scientific Progress, Harms the Planet, and Threatens Our Lives, and the danger of science denial:
Given that more than half of the video is devoted to discussing vaccine denialism, supplements, and HIV/AIDS denialism, I think Specter’s talk is quite appropriate for this blog. Read more »
*This blog post was originally published at Science-Based Medicine*
