Many athletes need to learn to eat healthy. increasing his daily calorie intake from 2,000 to 6,000 spread over seven meals a day, all while upping his protein intake through supplements and mainta. Even when the women upped their total calories. to male athletes and then had them complete strenuous bicycling sessions. The men seemed to have developed entirely new metabolisms. They burned more. Nutrition for the Athlete – 9.362….