The amount of consumption of calories needed each individual is not the same, depending on age, weight, height, and activities. Based on these variables, it is difficult for a housewife to prepare food in accordance with the needs of each family member. One way to overcome this persoalaan food needs is to understand the basis of calories needed for a specific age and activity level. - Calorie for children pre- puberty The more grown up, a child is more concerned with her physical appearance. Therefore, caloric intake becomes important to be aware of a mother from an early age. For school-age child who has not yet entered puberty, 1600 to 2500 calories per day could meet the needs of his body. Children who have appetite to eat can meet the needs of those calories. - Calories for children entering puberty Entering the transition to adulthood, most children need to increase your calorie intake to 2,500 to 3,000 per day. Generally, young men consuming more calories than girls, but the exact number of calories also depend on each activity. Children who frequently exercise need more calories because their bodies burn more calories than children who do not actively exercising. - Maintain a normal weight No need to burn every calorie that enters the body through exercise for body weight remained normal because the body burns calories just to keep the body functioning. Weight gain occurs when calories consumed are greater than the body needs to work. Calorie counter can help you find the number of calories the body needs based on various factors to be included in the calorie calculator. When these factors are removed, the American College of Sports Medicine, recommend a minimum of 1,200 calories per day for women and 1,800 per day for men. Calories below that amount has the potential to cause health problems. - Give your body to eat even though you often exercise Physical activity can burn between 20 percent and 50 percent of calories per day, depending on the level of activity. This means that a person needs to consume more calories than the amount of base needed to maintain body weight when not actively engaged. Athlete of course requires more calories than non-athletes.