Bile salt-dependent lipase (or
BSDL), also known as
carboxyl ester lipase (or
CEL) is an
enzyme produced by the adult
pancreas and aids in the digestion of fats.
Bile salt-stimulated lipase (or
BSSL) is an equivalent enzyme found within
breast milk. BSDL has been found in the pancreatic secretions of all species in which it has been looked for. BSSL, originally discovered in the milk of humans and various other
primates, has since been found in the milk of many animals including dogs, cats, rats, and rabbits.