August 4, 2012
Just in time for the Summer Olympics in London, a top science journal has issued a blistering indictment of the sports drink industry. According to the series of reports from BMJ (formerly British Medical Journal ), the makers of drinks like Gatorade and Powerade have spent millions in research and marketing in recent decades to persuade sports and medical professionals, not to mention the rest of us suckers, that a primal instinct—the sensation of thirst—is an unreliable guide for deciding when to drink. We’ve also been battered with the notion that boring old water is just not good enough for preventing dehydration.
I’ve been as susceptible to this scam as anyone else; I knew, or thought I knew, that if I’m thirsty after my half-hour go-round on the elliptical trainer, it means I was underhydrated to begin with. So for years I’ve been trying to remember to ignore my lack of thirst and make myself drink before working out. Not any more. (Read more)