Description
Sialic acid occurs naturally in breast milk and is an essential nutrient for human neurodevelopment. At present, more than 50 kinds of sialic acids have been found, of which N-acetylneuraminic acid (Neu5Ac, NANA) accounts for more than 99% of the entire sialic acids family, thus the sialic acid usually refers to Neu5Ac.
N-acetylneuraminic acid is generally recognized as safe (GRAS) in the US. It has been used in infant formula and other foods as a novel food ingredient in the EU and China etc. Sialic acid usually exists in the form of oligosaccharides, glycolipids, and glycoproteins, and its content is high in the human brain. It is an essential nutrient for human neurodevelopment, being helpful on anti-virus, inhibiting cell adhesion, improving human immunity, skin care etc.
