Functional Food and Superfood: Health and NutritionAbout This Hardback Any food which is described to have some additional positive effect on health beyond basic nutrition is referred to as a functional food. It also comprises foods which may have been bred purposely in a particular food variety such as purple or gold potatoes. Many functional foods claim to have physiological benefits. Berries, spinach, almonds, barley, sardines, etc., are some of the common examples of functional foods. Most plant