EnZym-Complete/DPP-IV is a state-of-the-art vegetarian enzyme and digestive support blend that may be effective for many users who haven't gotten satisfactory results with other digestive enzyme blends. This is because EnZym-Complete/DPP-IV contains unique enzymes and specialized digestive factors not found in other products, which also accounts for this products premium price tag. Kirkman's formulators emphasize that EnZym-Complete/DPP-IV can be used with any combination of foods. regardless of their proportions of fat, protein and carbs. Take at the beginning of a meal for best results.