Cow Peas (Black-eyed peas) are actually a bean and are part of the vegetable group on the Food Guide Pyramid. They are available dried, frozen and canned and offer several health benefits when included in a well-balanced diet. They make a good addition to soups, stews and salads and are also a healthy side dish. owpeas are a source of good protein (23-32%) and dietary fiber. They have low glycemic index Rich source of lysine and tryptophan Cowpeas contain minerals like K, Mg, Ca, P and Fe Cowpea protein isolates are known to lower plasma cholesterol Light brown, red and black cowpea varieties are rich in antioxidants.