Horseshoe, also called water chestnut. Native to India. China is rich in horseshoes. It is big, thin and tender, full of water, sweet and slag-free, crisp and delicious, and can be used as both vegetables and fruits. Guangxi horseshoe has a long-standing reputation and is rich in nutrition, containing protein, vitamin C, calcium, phosphorus, iron, quality, carotene and other elements; Horseshoe has great value in clearing away heat and moistening lung, promoting fluid production and resolving stagnation, soothing liver and improving eyesight, and benefiting qi and transforming qi. All kinds of good fruits in Lingnan have their own tastes, but they are edible when cooked raw and healthy, and the canned horseshoe tastes better when processed.

Water chestnut is a common name of water chestnut, which is a perennial herb growing in paddy fields. We eat the oblate underground stem. According to the data, water chestnut has a long history as a medicine, among which "Diet Spectrum for Living with Interest" summarizes the health care function of water chestnut in only 26 words, namely: "Water chestnut is sweet and cold. Clearing away heat, promoting digestion, sobering up, treating diaphragm, killing malnutrition, melting copper, removing phlegm, relieving flatulence, treating dysentery and regulating collapse.