Quest Enzyme Digest contains a spectrum of enzymes needed to support proper digestion of proteins, carbohydrates and fats. Combined with betaine HCL and peppermint oil, which maintains effective digestion, and has a carminative and antispasmodic action. Quest Enzyme Digest contains a spectrum of enzymes needed to support proper digestion of proteins, carbohydrates and fats. Combined with betaine HCL and peppermint oil, which maintains effective digestion, and has a carminative and antispasmodic action.