How many amino acids cannot be made by the body, so they must be obtained in the diet

Amino acids are the building blocks of protein. There are 20 amino acids that is present in our body where nine of them are an important component in your diet because they are not produced by the cells in the body. These are leucine, histidine, isoleucine, lysine, methionine, phenylalanine, threonine, tryptophan and valine.