Zizania latifolia is rich in nutrition, which not only contains sugar, organic nitrogen, water, fat, protein, fiber and ash, but also contains 17 amino acids, among which threonine, methionine, phenylalanine and lysine are essential amino acids for human body. Water bamboo is sweet and cold, and its nature is smooth and beneficial. It can not only induce diuresis and dispel water, but also help treat edema of limbs and dysuria, and also clear away summer heat to relieve annoyance and quench thirst. It is especially suitable for eating in summer, and can clear away heat and relax bowels, relieve annoyance and relieve hangover. Therefore, pregnant women can eat it properly, which is conducive to the supplement of amino acids during pregnancy and diuretic laxative.