Both purple and sweet potatoes are purple and have nutritional value, but raw or excessive consumption is not recommended. There are many purple potato series foods on the market now: purple potato chips, purple potato vermicelli, purple potato noodles and so on. Everything is fine. It also contains selenium. I don't know if you are satisfied with my answer. Purple potato (scientific name: eggplant potato) is also called black potato, and its pulp is purple to deep purple. Besides the nutrition of common sweet potato, it is also rich in selenium and anthocyanins. Anthocyanin can prevent and treat 100 diseases, and is considered as the seventh essential nutrient after water, protein, fat, carbohydrates, vitamins and minerals. Anthocyanin is the most direct, effective and safest free radical scavenger discovered by scientific community, which is used to prevent and treat diseases and safeguard human health. Their scavenging capacity is 20 times that of vitamin C and 50 times that of vitamin E. Purple sweet potato will become one of the main raw materials of anthocyanins. Purple potato is very popular in the international and domestic markets, and its development prospect is very broad.

Many people assimilate black potato and purple potato into one potato because their appearance characteristics are similar, but in fact, black potato and purple potato are very different. Sweet potato is actually the same kind of sweet potato, but the growth environment and fertilization are different. The last thing you can do is purple sweet potato, which is sweet potato. On the other hand, black potato is a kind of colored potato with health care and appreciation value, which is native to Peru in South America. There are more than 3000 kinds of potatoes in various colors. Black potatoes are just one of them. Nutritional value of black potato.

Black potato pulp is blue-purple and full of water. Noodles with good quality are sacred fruits and vegetables of beauty beauty and physiotherapy. Known as the "second bread", it is extremely rich in nutritional value, including high anthocyanin content, rich in vitamin A, vitamin C and minerals, and the content of high-quality starch is about 16.5%. In addition, black potatoes also contain many polyphenols, which have a good anticancer effect. Nutritional Value of Sweet Potato Basically, sweet potato has all the nutritional value of ordinary sweet potato. It mainly contains eight vitamins such as protein, vitamin A and vitamin B, and is also rich in trace elements such as phosphorus and iron. In addition, sweet potato is also rich in selenium and anthocyanins. It has obvious dietotherapy effect on preventing gastrointestinal diseases and thyroid diseases.