Black-eyed peas are a legume that is grown all over the world. They are especially nutritious for our body, as they contain vegetable proteins, carbohydrates, vitamin A that helps our vision and skin, B vitamins that contribute to the overall health of cells and vitamin C that strengthens our immune system. Black-eyed peas contain a good source of iron that fills us with energy, but also potassium and sodium. WARNING! The diet with black-eyed peas does not replace the treatment regimen with drugs prescribed by the attending physician.