Protein is the main food groups 1 includes meat, milk, eggs, dried beans, and also includes various micro-organisms, such as yeast. Seaweed, mushrooms, edible insect are a good source of protein as well.Other cells in the body. A kind of nutrients and body are indispensable. If the protein chemical analysis. It is found that the protein consists of a chemical called amino acids (if no amino acids have no protein).2 they are essential amino acids (body can not create it. Need to get from eating various) and amino acid (body created yourself).Recently, when the body digest food and nutrition of protein, the benefits of protein are shown.