The body must absorb nutrients as energy, construction and repair of body cells and tissues, regulating physiological function. Nutrition is closely related with growth, immunity, injury rehabilitation, ability to adapt to stress, physical energy, intelligence, etc. Diet can prevent aging, also can promote aging, rational nutrition helps physical health and anti-aging. If insufficiently food supplied, nutritional deficiencies, it can affect the body's metabolism, prevent the body running, even nutritional deficiency occurs, resulting the elderly frail and weak, leading other diseases possibly, leading to accelerate aging. And under the conditions of adequate supply for protein, inorganic salts and vitamins, controlling the energy intake can extend life. Natural aging of human deaths are rare, mostly suffering from several diseases more or less to damage the health, and accelerated aging process, cannot enjoy their later years. Thus, attention to nutrition for health, senility, and longevity is extremely important.