Purple potatoes are rich in protein, starch, pectin, cellulose, amino acids, vitamins and a variety of minerals, as well as selenium and anthocyanins. Purple sweet potato is rich in nutrition and has special health care functions. Its protein and amino acids are very easy to be digested and absorbed by the human body. Vitamin A, which is rich in vitamin A, can improve vision and skin mucosal epithelial cells, vitamin C can make the normal synthesis of collagen protein, prevent scurvy, and anthocyanin is a natural powerful free radical scavenger.
Purple sweet potato has the nutrition of ordinary sweet potato, and is also rich in selenium, iron and anthocyanins. It ranks first among anti-cancer vegetables released by the National Vegetable Cancer Research Center of Japan. In addition, purple potatoes can also be peeled, dried and crushed into powder with beautiful color and rich nutrition. They are excellent food processing materials and can be used as the main material or ingredient of various cakes.