Overweight and obesity have reached epidemic proportions globally. Although previously considered a problem confined to high-income countries, obesity is now prevalent in low- and middle-income countries as well. The importance of maintaining a balanced body weight is extremely important not only from an aesthetic point of view but also for health. Body weight must be in correspondence with the balance between caloric intake and energy expenditure. Good nutrition and an active life is essential to avoid diseases derived from bad eating habits and excess body weight.