1) Amaranth. 2) Arrowroot. 3) Buckwheat. 4) Corn and cornmeal. 5) Flax. 6) Gluten-free flours (rice, soy, corn, potato, bean) 7) Hominy (corn) 8) Millet.

Potatoes have nothing to do with the gluten-free diet, which excludes wheat, rye, and barley. They might be cooked with gluten-containing ingredients, but potatoes themselves are gluten free. It's easy to make the gluten-free diet complicated.

Bananas contain a protein called lectin, which is also found in many of the night shade foods that some people with Celiac or gluten intolerance have trouble with. Lectin is somewhat similar to gluten and can create an autoimmune response.