It is rich in protein, starch, pectin, cellulose, amino acids, vitamins and various minerals, as well as selenium and anthocyanins. Among them, anthocyanins can prevent and treat 100 diseases, and are rich in cellulose, which can reduce weight and promote gastrointestinal peristalsis.
Purple sweet potato is rich in selenium trace elements, lysine and anthocyanins besides the nutrients of ordinary sweet potato. Anthocyanin can prevent and treat 100 diseases, and is known as the seventh essential nutrient after water, protein, fat, carbohydrates, vitamins and minerals.