Dr. Houston's Highest Quality Plant Enzymes Enzyme for Digestive Intolerance Dietary Supplement All Vegetarian The Authority on Enzymes Digestive support for gluten, casein, proteins, carbohydrates, lactose, fats and polyphenols. TriEnza Chewable aids in the digestion of food proteins (including gluten, casein and soy), carbohydrates, sugars (including lactose) fats and polyphenols. TriEnza includes DPP IV (dipeptidyl peptidase 4) enzyme activity, which aids in the breakdown of casomorphin (from casein) and gluteomorphin (from gluten). TriEnza Chewable was developed by Dr. Devin Houston, Ph.D. enzyme biochemist.