Answer:

pepsin

Answer	Crossword Clue
PEPSIN	Digestive enzyme
PEPSIN	Enzyme produced in the stomach
PEPSIN	Stomach enzyme

PEPSIN	Stomach creation
PEPSIN	Chewing-gum additive.
PEPSIN	Stomach enzyme.
PEPSIN	Digestive enzyme.
PEPSIN	Digestion aid
PEPSIN	Digestive aid
PEPSIN	Important enzyme
PEPSIN	Digestive juice