Dr. Houston's Highest Quality Plant Enzymes Multi-Enzyme Product for Digestion of Phenolic Foods & Fiber Dietary Supplement The Authority on Enzymes Highest Quality Enzymes Support Digestion Vegetarian and Vegan Formula No-Fenol may be helpful for digestion of those foods high in phenols and salicylates. Digestion of fruits and vegetables may also be enhanced as No-Fenol contains enzymes that break down the components of plant fibers. No-Fenol was developed by Dr. Devin Houston, PhD enzyme biochemist. INGREDIENTS vitamin a