Horseshoe is rich in starch, protein, crude fat, calcium, phosphorus, iron, vitamins A, B 1, B2, C and so on. It also contains water chestnut, an effective component for resisting cancer and lowering blood pressure, which has the effects of clearing away heat and resolving phlegm, lowering blood pressure and treating dry stool. Chinese medicine believes that drinking fresh water chestnut with reed rhizome and fresh lotus root juice is an ideal drink for clearing away heat, promoting fluid production and quenching thirst.