The dietary taboos in the first month of pregnancy are as follows: First, it is recommended that pregnant women supplement folic acid to prevent fetal malformation. Second, avoid eating cold food. Cold and raw food may be unsanitary and contain bacteria and parasites, which will adversely affect pregnant women. Third, avoid spicy food. This kind of food may cause the uterus of pregnant women to contract, which may lead to miscarriage. Fourth, avoid smoking and fried food. High-temperature fried food has carcinogenic effect and is not recommended for pregnant women. Fifth, avoid caffeinated foods. Sixth, some seafood will promote uterine contraction, leading to abortion. Pregnant women can't eat this kind of food, such as crabs. At the beginning of pregnancy, the patient's diet should be light, mainly eggs and milk, requiring a balanced nutrition.