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.