The American Dietetic Association (ADA), the Dietitians of Canada and the American College of Sports Medicine (ASDM) had suggested that athletes has needed to consume adequate energy during periods of high intensity and /or long duration training to maintain body weight and health and to maximize training effects. So the American Dietetic Association (ADA), the Dietitians of Canada and the American College of Sports Medicine (ASDM) recommends that energy requirements are calculated by using prediction equations