Natures Aid Digestive Enzyme Complex contains Amylase, Protease, Lipase, Lactase & Cellulose plus Betaine HCl. Digestive Enzymes are usually produced in the digestive system and are responsible for the breakdown of the food we eat. Age and Illness can negatively affect the production of digestive enzymes, so using a Digestive Enzyme Supplement could be helpful. Natures Aid Digestive Enzyme Complex includes Lactase Enzymes, which improve lactose digestion in individuals who have difficulty digesting lactose.