The Barnyard millet (Echinochloa frumantacea) is one of the millet variants that grow under optimal weather conditions. It is rich in protein and hence good for the muscles. Like all millets, the barnyard millet is a gluten-free food. The Barnyard millet has high amounts of iron (18.6 mg in 100g of raw millet), the richest amongst all millets and cereal grains.