are beans a complete source of protein
Beans and legumes are an inexpensive food, commonly found in diets all over the world. High in fiber, calcium, and iron, beans and legumes are also a great source of protein. Combined with high protein whole grains like buckwheat, brown rice, millet, quinoa, and teff, beans and legumes not only make a delicious meal, but often provide the full compliment of essential amino acids needed by humans.