1, purple potato is not a genetically modified food. The reason why the peel and pulp are dark purple is because purple sweet potato is rich in anthocyanins. Anthocyanin has a powerful antioxidant function, which can not only inhibit carcinogens, but also enhance human immunity, delay aging, enhance physical fitness and enhance vision. 2. In addition, some potatoes will change color during storage, the flesh will be a little purple, and many potatoes will turn yellow after cooking. This is not the result of dyeing, but some colorless phenols in potatoes turned into colored anthocyanins during storage, or flavonoids changed their structure when they met alkaline water and turned into yellow chalcones. Purple potato small file 1, purple potato, also known as black potato, purple potato and black potato. The appearance is rectangular, the bud eye is relatively small, the peel is dark purple, black and shiny, and the flesh is dark purple. Purple sweet potato has extremely high nutritional value and is rich in starch, protein, calcium, iron, phosphorus, potassium, magnesium, carotene, riboflavin, nicotinic acid and other ingredients. 2. As a root vegetable, potatoes contain more starch than leafy vegetables, mainly to provide energy for the human body; However, due to the special color of purple potato, the contents of vitamin C and vitamin E are higher than those of ordinary potato. In addition, purple sweet potato not only contains anthocyanin with strong antioxidant activity, but also contains selenium with strong antioxidant function.