Theoretically, to put on weight, a person should eat about 500 Calories more each day than are required to maintain a constant weight. In practice, some people put on weight easily while others seem unable to gain weight even after eating extravagantly over a long period. A healthy weight-gain diet is usually low in fats and not especially high in proteins. Most of the extra calories should be in the form of carbohydrates which will provide the energy required for muscle growth. Excess protein is not stored as muscle. Muscles grow only in response to increased demands of exercise. Specific exercises, such as weight training, should be performed to ensure that the diet promotes muscle growth rather than fat deposition. See also body building.
Subjects: Medicine and Health.