Tuesday, July 24, 2012

Sports Drinks: Empty Calories?


As sports drink commercials start promoting their latest concoctions for optimal performance just in time for the Olympics, new evidence from the host country shoots down many of their claims.

The prestigious medical journal BMJ published seven articles on the topic in its current issue, investigating everything from scientists' links to sports drinks companies to the dubious benefits of hydrating with high-caloric liquids.

"There is a striking lack of evidence to support the vast majority of sports-related products that make claims related to enhanced performance or recovery, including drinks, supplements or footwear," say the researchers.

For example, Carl Heneghan, MD, of the University of Oxford, says that no more than half of the products reviewed with performance-enhancing claims had no references to studies.

Researchers found 431 claims for various performance enhancements in advertisements for 104 products. But when the researchers tried to find references, they could locate only half of the 146 references provided by the products' websites. And of those, they deemed only three to be legitimate... ► Read the full story by Sheila Eldred in Discovery News


Why? Tell Me Why!: Thirst


 

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