Potatoes are rich in starch, protein, vitamins and minerals, and low in fat. Judging from the absorption and utilization in protein, potatoes contain 8 kinds of amino acids that human body must supplement with food, which is a high-quality protein. If matched, compared with corn, it is rich in lysine and tryptophan that corn lacks, which can achieve complementary effect, better utilization and absorption, and can also be matched with meat to achieve the purpose of higher utilization rate. From the carbohydrate point of view, potatoes not only contain starch, but also contain a lot of cellulose. If the purpose of your fitness is to lose weight, it is suitable for eating potatoes that are not too rotten, that is, a little crunchy. At this time, the cellulose content is high, which helps to reduce fat.