The body needs fuel to perform. But what fuel? And when? These are the questions many of us ask ourselves as we get ready for a long run or finish up an hour in the weight room: www.washingtonpos...

The body needs fuel to perform. But what fuel? And when? These are the questions many of us ask ourselves as we get ready for a long run or finish up an hour in the weight room: www.washingtonpos...

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