Typical digestive enzymes include lipases, amylases and proteases, and they digest fats, carbohydrates and proteins respectively, according to MedicineNet. Pancreas is the gland that secretes these enzymes. Other digestive enzymes include rennin, maltase, lactase and gelatinase, notes SFGate.
Lipase converts fat globules into glycerol and fatty acids, which then travel through vessels to all parts of the body, explains SFGate. Salivary amylase breaks down starch into smaller carbohydrates, while pancreatic amylase converts these carbohydrates into glucose. Chymotrypsin, pepsin and trypsin are the primary types of protease, and they convert protein into simple amino acids.
Doctors may prescribe oral digestive enzymes in patients with chronic pancreatitis, chronic pancreatitis, Shwachman-Diamond syndrome and cystic fibrosis, reports MedicineNet.