Low Carbohydrate Diets: Have They Been Researched Adequately?
There have now been more than 70 clinical trials on nearly 7,000 people, including a wide variety of sick and well populations, mainly in the U.S. These studies are compiled in a public database.
Thirty-two of these studies have lasted at least six months
Six trials went on for two years, enough time to demonstrate the lack of any negative side effects.
In virtually every case, the lower-carb, higher-fat diets did as well or better than competing regimens.
The cumulative evidence shows that low-carb diets are safe and effective for combating obesity, highly promising for the treatment of Type 2 diabetes, and they improve most cardiovascular risk factors.
Did the Dietary Guidelines Advisory Committee review this literature?
An article in BMJ documents that the low-carbohydrate literature was omitted from the Dietary Guidelines Advisory Committee report.
Excerpt: The omitted papers on low-carbohydrate diets include “nine pilot studies, 11 case studies, 19 observational studies, and at least 74 randomised controlled trials, 32 of which lasted six months or longer.” See Table C on BMJ.com for the complete list of studies. A more legible version of this table is available here (Appendix #5).
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