Occasional consumption of cold foods during pregnancy does not affect the fetus much, but long-term may lead to uterine contractions, triggering preterm labor or miscarriage, and some of the cold foods may cause secondary complications, which may adversely affect the fetus. Occasionally eating cold food during pregnancy will not affect the health of the fetus, but long-term, frequent, large doses of eating may first affect the pregnant woman, and then by the changes in the pregnant woman, affect the fetus. As the digestive tract of pregnant women is relatively fragile and sensitive during pregnancy, too much cold food may stimulate the digestive tract, resulting in abdominal pain, diarrhea and other discomforts, and in severe cases, may even lead to uterine contractions which may lead to preterm labor or miscarriage. And cold foods such as ice cream eaten more may raise the pregnant woman’s blood sugar leading to diabetes, which in turn adversely affects the growth and development of the fetus, and other foods such as raw and cold sashimi, etc., may be relatively unhygienic, eating may lead to diarrhea, gastroenteritis, etc., which seriously affects the growth and development of the fetus. So you still need to pay attention to a healthy diet during pregnancy to avoid discomfort.