Amylase (diastase), belong to the group of digestive enzymes (from the group of hydrolases) that catalyse the decomposition of polysaccharides (starch and glycogen) into simple sugars. They are found in saliva, pancreatic juice secreted into the small intestine continuing the digestion. In nature, found in malt, cereal grains. Included in the dietary supplement in combination with the components decomposing milk sugar (lactose), lipases (enzymes that catalyse the hydrolysis decomposition of an ester bond of fat) and proteases (enzymes that catalyse the decomposition of peptide bonds, and are involved in the digestion of protein). Products containing lipase are recommended for active people using high carbohydrate diet and eating hearty meals.