Question: how much water to drink a day when exercising?
Answer: According to the American Council on Exercise, exercisers should consume 17 to 20 ounces of fluid 2 to 3 hours before exercise and another 8 ounces 20 to 30 minutes before starting their workout. Then, during exercise, 7 to 10 ounces every 10 to 20 minutes. And, finally, 30 minutes following exercise, 8 last ounces.