What about dietary supplements?
The FDA regulates dietary supplements as foods, and not as drugs. The FDA does not pre-approve dietary supplements on their safety and efficacy, unlike drugs. In contrast, the FDA can only go after dietary supplement manufacturers after they have put unsafe products on the market. However, certain foods (such as infant formula and medical foods) are deemed special nutritionals because they are consumed by highly vulnerable populations and are thus regulated more strictly than the majority of dietary supplements.
The claims that a dietary supplement makes are essential to its classification. If a dietary supplement claims in any way to cure, mitigate, or treat a disease, it would be considered to be a unauthorized new drug and in violation of the applicable regulations and statutes. As the FDA states it:
No, a product sold as a dietary supplement and promoted on its label or in labeling as a treatment, prevention or cure for a specific disease or condition would be considered an unapproved--and thus illegal--drug. To maintain the product's status as a dietary supplement, the label and labeling must be consistent with the provisions in the Dietary Supplement Health and Education Act (DSHEA) of 1994.
The only claims that a dietary supplement is allowed to make are structure/function claims. These are broad claims that the product can support the structure or function of the body (e.g., "glucosamine helps support healthy joints"). The FDA must be notified of these claims within 30 days of their first use, and there is a requirement that these claims be substantiated. Nevertheless, many critics claim that dietary supplements overstate their importance and their impact on overall health. Evidence of their benefits has yet to meet standard scientific criteria of credibility, based on large scale, double blind testing with statistically significant outcomes.
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Nutrient Timing: The Future of Sports Nutrition
John Ivy, Robert Portman
Basic Health Publications, 2004-02-20
Price: $14.95
Keywords: Alternative Medicine, Diets Weight Loss, Diets, Health, Mind Body, Nutrition, Supplements, Vitamins Supplements
Reviews:
DON'T UNDERESTIMATE - Sound Advice by Qualified Authors, usefull to all Athletes
Great information that needs a more user-friendly format
Excellent
The Cutting Edge For Serious Athletes
Nutrient Timing: The Future of Sports Nutrition
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No matter what you are training for, from power lifting to Ironman triathlon, from football to classical ballet, if you want your body to respond faster and more effectively to the training you are doing, then read this book.
Be aware that the authors do discuss Nutrition in a resistance training context, but there conclusions and their advice is consistent with conclusions of sport science as discuses by other authors, see "other materials of interest" later.
This is a a very to the point, non-technical, no pseudo-science guide to improving your body's ability to respond to your training and exercise time investment. Much of the training and exercise time athletes and fitness enthusiasts spend in the gym is work targeted at SAID (Specific Adaptation to Imposed Demand) directed at making that individual better able to perform - stronger, faster, more powerful, or better protected from injury. This book is about knowing when to eat and what to eat to give your body the opportunity to perform at it best during exercise, game, or performance and to recover and adapt faster than it has before.
One piece of advice to readers - Don't obsess about minute details.
At least one of the Amazon reviewers posted complex recipes trying to exactly match the diet recommendations. Use the 'themes', such as including protein in your recovery drink, and then work within those themes to find out what works well for you over time.
Other materials of interest to athletes who want to learn more about sport nutrition:
For runners, and especially for female athletes, I strongly recommend "Fast Track : Training and Nutrition Secrets from America's Top Female Runner" by Suzy Favor-Hamilton. You will be very surprised how similar the dietary recommendations are.
For personal trainers, coaches, and athletes with some biology or chemistry foundation I would strongly recommend "Sport Nutrition: An Introduction to Energy Production and Performance" by A. Jeukendrup & M. Gleeson, which is a very up to date (published 2004), comprehensive, and peer reviewed treatment of the subject.