Pregnant women who eat sauerkraut generally have no effect on fetal development, but should not be consumed in excess. Sauerkraut belongs to the pickled and fermented food, the flavor is sour, crisp, pregnant women if the appetite is not good, moderate eating sauerkraut, can regulate appetite, increase appetite. Sauerkraut in the pickling process, easy to produce excessive nitrite, toxic side effects on the human body, and often eat pickled food, increase the metabolic burden of the kidneys, easy to trigger edema during pregnancy. Sauerkraut contains oxalic acid components, pregnant women eat sauerkraut in excess, easy to stimulate the gastric mucosa, causing gastric discomfort, so pregnant women should not eat in excess. Pregnant women feel uncomfortable after eating sauerkraut, should promptly seek medical attention to clarify the cause, need to be standardized treatment under the guidance of the doctor.