Gluten is a protein found in all forms of wheat (including durum, semolina, and spelt), rye, oats (oat bran), barley and related grain hybrids such as triticale and kamut. In foods, gluten is responsible for the elasticity in dough and the structure of bread. It is the gliadin component of the gluten that is problematic and responsible for Celiac disease.

Max Triple Whey Protein - Chocolate Flavor (contains cocoa powder) Maxpro - Chocolate Flavor (contains cocoa) High 5 - Chocolate and Cappuccino Flavors (contains cocoa) Max Gourmet - All Flavors (contains oat fiber) Max Lean Protein - All Flavors (contains oat bran fiber) Max MRP - All Flavors (contains barley bran and oat fiber) Big Max 50 - All Flavors (contains barley bran and oat fiber) Gluta-Matrix Capsules (glutamine peptides are derived from wheat gluten) Gluta Matrix (glutamine peptides are derived from wheat gluten)