Pregnant women should avoid consuming fruits such as watermelon, longan, and lychee, foods containing high nitrates such as sauerkraut, kimchi, pickles, pickled fish, and bacon, as well as hawthorn, chocolate, hot condiments, and canned foods. , spinach, pork liver, crab, barley, purslane, strong tea, high-sugar foods, etc. Eating large amounts may cause discomfort to pregnant women, affect fetal development, even miscarriage or maternal diseases. ?

There are no obvious adverse reactions when pregnant women eat the above foods before pregnancy, but they occur during pregnancy. This shows that morning sickness is not only related to food, but also depends on the special physique of pregnant women.