Amino acids are organic compounds that serve as the building blocks of proteins. There are 20 different types of amino acids that are essential for the proper functioning of the human body. Here is a list of amino acids:

1. Alanine
2. Arginine
3. Asparagine
4. Aspartic acid
5. Cysteine
6. Glutamic acid
7. Glutamine
8. Glycine
9. Histidine
10. Isoleucine
11. Leucine
12. Lysine
13. Methionine
14. Phenylalanine
15. Proline
16. Serine
17. Threonine
18. Tryptophan
19. Tyrosine
20. Valine

Each amino acid has a unique chemical structure and plays a specific role in the body. Some amino acids are classified as essential, meaning they cannot be produced by the body and must be obtained through diet. Others are nonessential, meaning they can be produced by the body.

Amino acids are important for a variety of bodily functions, including the synthesis of proteins, the formation of neurotransmitters, and the regulation of metabolism. Deficiencies in certain amino acids can lead to health problems such as muscle wasting, impaired immune function, and neurological disorders.

In summary, amino acids are essential for human health and are the building blocks of proteins. There are 20 different types of amino acids, each with a unique function in the body.