Question

What do you mean by nutrition of the body

Answer 1

the process of intaking the nutrients is called nutrition
nutrients - the food or complex substance that we take cor meeting energy requirement is called nutrients

Answer 2

essential nutrients are necessary for health ,but cannot be produced in our body in sufficient amount or at all ,so you need to obtain them from food for dietary supplement .they include all vitamins, certain Manila, 9 amino acids ,2 fatty acid and water .