[The effect of nutrition on aging]

It is possible to prevent some degenerative processes of old age. Special prescriptions should respect: 1. A reasonable diet in order to slow up ageing should be started before the age of 60 years; 2. diet for common metabolic diseases of old age:obesity, diabetes, hypertension; 3. diets adapted to gastric achlorhydria and to digestive diseases frequent in old age; 4. knowledge about the relationship between diet and cancer.