Do you need (insert sports drink name) after a work out?

According to the British medical journal (BMJ) the answer would be a resounding NO! According to the article by  Yoni Freedhoff the BMJ published recently not one but seven articles…. all trying to find if the soft drinks many claims (all supported by other research) do actually hold water.

According to Freedhoff:

” 431 performance enhancing claims for 104 different products. Those claims were “backed up” by references made on the products’ websites to 146 references. Of those 146, the authors could only actually find half of them, and of that half, “84% were judged to be at high risk of bias“,while only 3 were deemed to be of high quality and of low risk of bias. ”

What was most shocking was the BMJ’s evaluation of large amounts of carbohydrates improving performance, as quoted by Freedhoff:

“From our analysis of the current evidence, we conclude that over prolonged periods carbohydrate ingestion can improve exercise performance, but consuming large amounts is not a good strategy particularly at low and moderate exercise intensities and in exercise lasting less than 90 minutes.There was no substantial evidence to suggest that liquid is any better than solid carbohydrate intake and there were no studies in children. Given the high sugar content and the propensity to dental erosions children should be discouraged from using sports drinks.”

To read more please go to his blog post, at which there are also links to the actual studies. Interesting stuff…

keep experimenting, failure is always an option… never the end…


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