Food Sources and Health Supplement Recommendations for Vitamin A Efficacy

Vitamin A Efficacy, Food Sources, Health Supplement Recommendations

Vitamin A is the name for a fat-soluble retinoid, which is stable to heat, acid, and alkali and is easily oxidized. There are two types of vitamin A, one is vitamin A alcohol, which only exists in animal foods and is the original form of vitamin A; the other is carotene, which can be ingested from plant foods or animal foods and converted into vitamin A in the body. The content of flavonols varies from person to person. Vitamin A contains a photosensitive substance (ie, rhodopsin) that helps make the retina, which is very important for night vision; promotes human growth and development; and maintains normal skin and mucous membranes for the normal functioning of the immune system.