It is most renowned for its support of healthy eyesight, immune system function, skin health, and
cellular transport reactions across multiple bodily systems.3 The most common food sources of vitamin A are organic meats and other quality animal products, so vitamin A supplementation is particularly important for those who are vegan or vegetarian.
Details that can be included are biochemical
reactions; gene regulatory networks; genetic interactions; proteins, small molecules, DNA, RNA, complexes and their
cellular locations; complex assembly and
transport; post-translational protein modifications; citations; experimental evidence; and links to other databases e.g. protein sequence annotation.