Betaine hci/pepsin/gentian bitters contains three nutritional factors that perform complementary functions designed to support the efficiency of the digestive process. supplementing with betaine hci may support the stomach's digestive capacity. pepsin is an enzyme produced by the body to digest protein-containing foods in the stomach. pepsin works in conjunction with stomach acid to support protein digestion. gentian is an herb used to optimize the digestive capacity and tonify the digestive tract. its bitter nature may help to stimulate the body's production of digestive enzymes.for optimal digestive support, use this supplement in conjunction with best digestive enzymes - all vegetarian, a uniquely formulated, full-spectrum high potency digestive enzyme blend.