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White chestnut potato contains 51-60% starch, 5.7-10.7% protein, 2-7.4% fat, sugar, starch, crude fiber, carotene, vitamins A and B , C and calcium, phosphorus, potassium and other minerals, up to 98% of the nutrients available for human body absorption and utilization.

The functions and functions of chestnut potatoes are to nourish the kidneys and essence, strengthen the body, and also have the functions of moistening the intestines and laxative, strengthening the stomach and digesting food.