Proso millet acts as a prebiotic for your gut and prevents colon cancer. Its low glycemic index reduces risk of type 2 diabetes, helps fight obesity and acts as an antioxidant. Proso millet contains high lecithin which supports the neural health system. Proso millet, compared to other food grains, has the lowest water requirement for any cereal. It is an excellent crop that can easily grow in arid conditions and rain shadowed regions. Proso millet is sold as a health food due to lack of gluten and can be incorporated into the diets of people who are wheat intolerant.