Sweet potato is rich in sugar, protein, cellulose and vitamins, especially β-carotene, vitamin E and vitamin C, especially sweet potato is rich in lysine, while rice and flour just lack lysine. When sweet potato and rice flour are mixed, a more comprehensive protein supplement can be obtained. As far as overall nutrition is concerned, sweet potato is the best of all grains and vegetables. Europeans and Americans regard it as the "second bread", scientists in the former Soviet Union say it is the future "space food", and the French call it a well-deserved "advanced health food".

Health care function of sweet potato;

A sweet potato has anticancer effect.

Sweet potato is good for the heart.

C sweet potato prevents emphysema.

D sweet potato has antidiabetic effect.

E sweet potato can promote human immunity.