Sweet Potato

An excellent source of carbohydrates, vitamins (providing 100 percent of the recommended daily allowance, or RDA, of vitamin A and 49 percent of vitamin C), and minerals (providing 10 percent of RDA of iron and 15 percent of potassium), sweet potatoes contain phytonutrients such as cyanidins and peonidins that may lower the risk of passing heavy metals and oxygen radicals through the digestive system.