Vegetables and fruits, natural beans, seeds, legumes, nuts, eggs, lean fish, poultry, and meats that have not been processed most dairy products with low fat. The following grains, starches, or flours can be used in a gluten-free diet: buckwheat, amaranth, arrowroot, cornmeal, grits, and polenta that are gluten-free, flax, hominy (corn), millet, quinoa and soybean flours are all gluten-free options. wild rice, sorghum, soy, tapioca (cassava root), and teff are among the food items.