Anthocyanins, polyphenolic compounds abundant in certain foods, are responsible for the orange-red to blue-violet hues evident in many fruits, vegetables, cereal grains, and flowers. Interest in these pigments has intensified due to their potential health-promoting properties as dietary antioxidants, as well as their use as natural dyes in a variety of products. Mechanistic studies from in vitro experiments as well as in vivo clinical trials demonstrate wide-ranging efficacy and biological activity of anthocyanins. Anthocyanins in Health and Disease presents the first comprehensive review of modern-day research on the relationship of anthocyanins to human health and disease.