Water chestnut fruit contains a variety of trace elements, especially phosphorus, which can promote the growth and development of the fetus and regulate the physiological functions of pregnant women, and also promote the metabolism of sugar, fat and protein in the body and regulate the acid-base balance, so it can be eaten. It is suggested that the nutrition should be balanced, eat more foods containing high protein and vitamins during pregnancy, do regular prenatal examinations, exercise properly and get more sunshine.