I found this in an article out of men’s health magazine.
If you’re exercising for an hour or less, you don’t need to make special dietary accommodations. But you do need fuel to sustain yourself. Lowery recommends eating a simple meal with at least 200 calories, 20 grams of protein, and 30 grams of carbs an hour or two before your workout. A simple grilled-chicken sandwich will set you up.