In science and human medicine, nutrition is the science or practice of consuming and utilizing foods. it studies the  nutrients in food, how the body uses nutrients, and the relationship between diet, health, and disease.

There is a direct relation between the body composition, the health state and the life quality, That´s why having a correct diet impacts the three of them.

Nutrition and diet plans for older adults and elderlies must be customized depending on their health state. This will help to improve the respond to their mediacl tratment and their life quality overall.