Abstract

Ascorbic acid is an important micronutrient necessary for a significant number of metabolic reactions in humans and other primates. It is a strong reducing agent involved in reduction reaction and it is structurally related to glucose. Experimental and epidemiological studies have documented the biochemical, physiological and therapeutic roles of ascorbic acid. It is an essential water-soluble antioxidant vitamin derived from exogenous source; thus its role in human health is worthy to be considered particularly because of the current global economic trend. The biochemical, physiological and therapeutic roles of ascorbic acid is reviewed, providing further insights into the role of ascorbic acid in biological functions.

Key words: Ascorbic acid, human health, disease, biological function, therapeutic roles.