Нe sweet potato is very high in nutritive value and merits wider use on this account alone. Contrary to popular opinion, it is not a starchy food when roasted or backed, since most of the starch is broken down to maltose and other soluble sugars. Нe\ rank as one of the healthiest vegetables, because of high levels of vitamin A, C, iron, potassium, anthocyanin, polyphenol, and fiber. They are also an excellent source of the vitamin A precursor, beta-carotene. Popular Crop genetic diversity is shaped by complex interactions between natural processes and those driven by humans.