Question: what grains are gluten free?
Answer: Amaranth. Once the sacred food of the Aztecs, amaranth is high in protein, calcium, iron, and fiber. ... 
Rice. Rice comes in many varieties: short grain, long grain, jasmine and basmati to name a few. ... 
Buckwheat. ... 
Cornmeal, Polenta, Grits. ... 
Millet. ... 
Quinoa. ... 
Sorghum. ... 
Teff.