How many calories we consume depends on the amount of exercise you do every day. Experts believe that the total calories that men get from food and drinks every day should not exceed 2500 calories; If it's a woman, don't exceed 2000. Children should be treated differently according to their age. For example, a 4-year-old child should not consume more than 1300 calories a day. The young men aged 17 and 18 may need about 3000 calories because of their physical development.