All types of rice (except sushi and quick cooking ... so don't rely on organic to have less arsenic. The gluten-free grains amaranth, buckwheat, millet, and polenta or grits had negligible ...

But produce, quinoa, rice, buckwheat ... However, a product doesn't have to always don the FDA-approved "gluten-free" label. All plain cuts of fresh meat and produce are naturally gluten-free.

So do all grains have gluten? Nope. Rice, quinoa, buckwheat, and millet are all gluten free. If you're thinking about giving your diet a makeover, talk to your doctor or a dietitian first.