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4. Amino acids, peptides and proteins

Functional amino acids are mainly essential amino acids and conditionally essential amino acids, such as taurine. Bioactive peptides include: blood pressure lowering peptides, antibacterial peptides, etc.; active proteins include immunoglobulin, lactoferrin, lysozyme, peroxidase, etc.

Amino acids are required for the growth and development of the human body and maintain normal metabolism, and must be taken from the diet. Taurine is particularly important for infant growth and intellectual development, improving body (such as vision) functions, and improving immunity. Gamma-aminobutyric acid has anti-anxiety, lower blood pressure, and promote liver and brain function.

Bioactive peptides have a variety of human physiological regulation functions, such as promoting immunity, regulating hormones, antibacterial and antiviral, lowering blood pressure and blood lipids, etc. Active proteins have some special physiological functions, such as immunoglobulin can enhance the body's defense ability, lactoferrin has the ability to bind and transport iron.