These are estimates of daily carbohydrate requirements for weight trainers.Intensity of exerciseover time increases quantities required, and these estimates only apply to days of exercise. Eat meals low in fat and fiber with some protein and carbohydrate. Fiber can and should be part of a healthy diet in other meals. Weight trainers don’t usually expend the amount of energy in training that endurance athletes do, so they don't have to be as acutely aware of the intake of carbohydrate required to fuel such effort. For example, a marathoner or triathlete may require 7 to 10 grams of carbohydrate per kilogram body weight per day.