Orange and purple varieties of sweet potatoes contain a lot of vitamin A, vitamin C, beta-carotene and antioxidants. They help the eyes and the immune system. The yams have high carbohydrates and are a good source of potassium, vitamin B6, and dietary fiber. However, although they both supply energy and essential nutrients, it is usually possible to say that sweet potatoes are more nutrient-dense because they have more antioxidants and contain more vitamins.
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