Vitamins Support groups and discussion forums

Retinol (Vitamin A) Vitamins are nutrients required for essential metabolic reactions in the body [1]. Vitamins can act both as catalysts and participants in the chemical reaction. The body typically assembles vitamin-dependent catalysts from a variety of building blocks including amino acids, sugars, phosphates, and vitamins. Each vitamin is typically used in multiple different catalysts and therefore has multiple functions[2]. The role of a catalyst is to participate in a chemical re ...