Vitamin C is one of the safest and most effective nutrients, experts say. It may not be the cure for the common cold (though it’s thought to help prevent more serious complications). Vitamin C is a naturally occurring potent water-soluble…

Vitamin A is a grouping of organic compounds that enable important bodily functions and processes to take place. Vitamin A is used in fighting off and preventing infection, the production of white blood cells, immune system regulation, cell differentiation and…