What are amino acids? The role of essential amino acids

Amino acid is the basic unit of protein, which is composed of amino group and carboxyl group, and forms polypeptide through peptide bond. There are 20 common amino acids in human body, 9 of which cannot be synthesized by human body, and must be taken from food, which is called essential amino acids. These nine essential amino acids include lysine, tryptophan, isoleucine, phenylalanine, threonine, valine, methionine, histidine and methionine.

Essential amino acids play an important role in human body. They are the basic raw materials for the synthesis of protein. Without any essential amino acids, it is impossible to make a complete protein. They participate in many biochemical reactions in the body, such as energy metabolism, immune response and nerve transmission. They are especially important for the growth and development of babies. Therefore, it is very important to supplement enough essential amino acids for health.

In addition to essential amino acids, there are non-essential amino acids. They are not only essential amino acids, but also can be synthesized by metabolizing other amino acids or absorbing food. Although they are not as important as essential amino acids, they still play a vital role in human health.

It should be noted that although essential amino acids are very important to human health, they should not be taken in excess. A high-protein diet may lead to kidney overload and even cause some diseases. Therefore, when supplementing essential amino acids, we should pay attention to the moderation and balance of intake.

Amino acids are the basic units of protein, among which 9 essential amino acids cannot be synthesized by the body itself. These essential amino acids play an important role in the body, including participating in protein synthesis, biochemical reaction and infant growth and development. Therefore, we need to ensure a balanced intake of these essential amino acids.