Dietary taboos during early pregnancy Diet during early pregnancy is very important. Pregnant women need to pay attention to some dietary taboos at this stage. First of all, pregnant women must avoid eating raw or undercooked foods, such as raw meat, raw fish, raw egg yolks, raw shellfish, etc. Bacteria present in these foods can cause infection and seriously endanger the health of pregnant women and fetuses. Secondly, pregnant women should try their best to