Water chestnut, also known as water chestnut and water chestnut, is the fruit of an annual herbal aquatic plant water chestnut, which is crispy and delicious. It can be eaten after cooking or porridge. Water chestnut is rich in protein, unsaturated fatty acids, vitamins and trace elements. Sweet, flat and non-toxic. Has the effects of promoting diuresis, promoting lactation, quenching thirst and relieving alcoholism.