Pregnancy is an important stage in every woman\’s life. In the first three months of pregnancy, the embryo is developing, and women need to pay special attention to their diet to ensure the healthy development of the embryo. This article will introduce some taboo foods that should be avoided during the first three months of pregnancy. First of all, raw fish and raw meat are among the foods that should be avoided in the first three months of pregnancy. Raw fish and meat may carry bacteria and parasites, such as salmonella and Toxoplasma gondii, which are very harmful to the development of the embryo. Therefore, pregnant women are advised to avoid eating raw fish sushi, sashimi, raw meat and raw meat products. [The most complete and best sound quality in history] 32 sets of 100 must-listen music for late pregnancy and prenatal education for free Secondly, certain soft cheeses and unpasteurized dairy products should also be avoided. These products may be contaminated with Listeria, and Listeria infection may lead to serious consequences such as miscarriage, premature birth, and poor fetal development. Therefore, pregnant women are advised to avoid soft cheese, blue cheese, unpasteurized milk and milk products. Also, raw eggs should be avoided. Raw eggs can be contaminated with salmonella, which can cause food poisoning and problems with embryonic development. Therefore, pregnant women are advised to avoid raw eggs or foods containing raw eggs, such as raw mayonnaise and raw egg meringues. Additionally, caffeine intake should be limited. Caffeine can cross the placenta and affect fetal development. High caffeine intake may increase the risk of miscarriage. Therefore, it is recommended that pregnant women limit their caffeine intake to no more than 200 mg per day. This means they should avoid or limit their intake of coffee, tea and caffeinated drinks. Finally, alcohol is one of the foods that should be completely avoided during the first trimester of pregnancy. Alcohol can cross the placenta and enter the fetus, which is very dangerous to the development of the fetus. Heavy drinking can lead to fetal alcohol syndrome, a permanent intellectual and developmental disability. Therefore, pregnant women should completely abstain from alcohol during the first three months of pregnancy and throughout pregnancy. In short, in the first three months of pregnancy, women should pay special attention to their diet and avoid some taboo foods. These no-no foods include raw fish and meat, certain soft cheeses and unpasteurized dairy products, raw eggs, caffeine and alcohol. By following these dietary recommendations, women can contribute to the healthy development of their embryos. At the same time, if pregnant women have any dietary concerns, they should seek advice from a professional doctor or nutritionist.