Sweet potato is an amazing vegetable, because of it's starch it's best actually cooked in order for the body to digest it. There's several different varieties of sweet potato, usually you can tell by their colour, which also indicates the type of antioxidants they contain. The orange ones are an excellent source of beta-carotene, but the purple kind contains a different type of antioxidants called anthocyanins like those also found in blueberries and eggplants, helping to prevent against cardiovascular diseases and cancer. The Japanese sweet potato "Satsumaimo", which is purple on the outside, and white on the inside, is a great source of this particular antioxidant.
