Early pregnancy often eat iodine-rich food, can maintain a balanced diet before pregnancy, pregnancy vomiting reaction is obvious, should ensure that the necessary intake of carbohydrates. Iodine is the main raw material for synthesizing thyroxine, early pregnancy should always eat iodine-rich foods, such as kelp, seaweed, shellfish, marine fish, etc.; the nutrition and nutrients needed in early pregnancy do not have a significant increase in the pre-pregnancy balanced diet can continue to be maintained, while those with a significant reaction to early pregnancy should eat small meals, try to choose light and tasty food, to ensure that the necessary daily intake of carbohydrates. There are individual differences in the early pregnancy reaction of each person during early pregnancy. Keeping a happy and stable mood and paying attention to the matching of color and flavor of food can help to relieve the early pregnancy reaction, and if the symptoms are more serious, the help of obstetricians can be sought.