A digestive enzyme is a complex protein made by your body to help break down food into smaller molecules so they can be absorbed into your body. Most digestive enzymes are made by your pancreas, though a few are made by your mouth, stomach, and small intestine.
amylase — breaks apart complex sugars into smaller molecules like maltose
lipase — breaks down complex fats into smaller fatty acids and glycerol
pepsin — breaks down proteins in foods like meat, eggs, and dairy products into smaller peptides
lactase — breaks down the milk sugar called lactose
cholecystokinin — a hormone secreted in the small intestine that causes the gallbladder to contract and release bile, and the pancreas to release digestive enzymes
trypsin — breaks down protein, so it can be made into amino acids