Eating walnuts in moderation during pregnancy can provide the nutrients needed for the growth and development of the fetus, but excessive consumption should be avoided. Walnuts are rich in protein, vitamins, minerals and other nutrients, moderate consumption during pregnancy can provide more nutrients for the growth and development of the fetus, but walnuts also contain more lipids, overconsumption can easily lead to indigestion, causing gastrointestinal discomfort. During pregnancy, you can have a balanced diet under the guidance of your doctor to ensure adequate nutrition to meet the physiological needs of the mother and the growth and development of the fetus. You should increase the amount of food rich in protein, iron, calcium and other nutrients, such as meat, eggs, milk, poultry, etc. You should also increase the intake of fresh fruits and vegetables and exercise appropriately in order to maintain an appropriate weight gain.