According to http://www.centerfornaturopathic.com/Glycemic%20index.htm , foods to avoid: grains except cornmeal, hominy grits, buckwheat, wild rice, whole rye kernels, whole spelt kernels, triticale kernels, whole oats (Irish oatmeal), amaranth, teff, barley, quinoa, bulgur, converted rice, and whole wheat kernels tortillas are OK potatoes except boiled potatoes and sweet potatoes/yams