Plant versus Animal Enzymes
Plant enzymes work in all stages of digestion, including the pre-digestive phase. Animal enzymes (usually from slaughterhouse pancreases) are only active in the later stages of digestion, and do not accomplish any pre-digestion, making them far less effective.
For the aforementioned reasons, it is optimal to take Digestion Enhancement Enzymes™ every time you eat (more with cooked food; less with raw food). Digestion Enhancement Enzymes™ will digest protein, fat, carbohydrates and cellulose.