The term ‘antioxidant’ is used with ever-increasing frequency in both the popular media and biomedical literature. Notwithstanding its common usage, it can be a difficult term to define precisely. According to one current and useful definition from an authoritative source, antioxidant refers to “any substance that delays, prevents, or removes oxidative damage to a target molecule” (1). In the human body, antioxidants help to prevent, protect, or reduce damage to biological molecules from exposure to specific chemical substances, known as reactive species and which are often generated by endogenous metabolic processes.