Dietary Supplement Pineapple Enzyme Healthy Digestion Isura - Non-GMO - Mass Spec- Documentation - Lab Tested Purity & Potency Guaranteed Bromelain is an enzyme isolated from the stem of the pineapple plant and is used to support the digestive system. Natural Factors only uses extra-strength bromelain, providing 1000 GDU (Gelatin Digesting Units) and 1500 MCU (Milk Clotting Units) of enzyme activity per gram. Manufactured by Natural Factors to ensure safety and potency in accordance with Good Manufacturing Practices (GMP) of the FDA and Health Canada.