Digestion of gluten and casein can be particularly difficult for some individuals. Similase GFCF contains enzymes to support comprehensive digestion, while also providing dipeptidyl peptidase IV (DPP IV) activity for the digestion of proline-containing dipeptides from gluten and casein.* Similase GFCF supports a gluten-free, casein-free lifestyle and helps relieve occasional indigestion, gas, and bloating.*