Walnuts can be consumed during any period of pregnancy, especially after the third trimester, the best stage for fetal DHA supplementation, you can appropriately increase walnut intake. According to the recommendations of the Chinese balanced diet for pregnant women, women should supplement with about 10g of nuts per day, and walnuts are a good choice. Therefore, pregnant women can consume walnuts appropriately throughout pregnancy. In addition, walnuts contain linolenic acid, which can synthesize DHA that is beneficial to fetal development and promote fetal brain development. Therefore, in the third month of pregnancy, when the fetal brain is developing rapidly, you can start to consume walnuts appropriately, 3-4 walnuts per day, which is beneficial to the fetal bone and nervous system development. Although walnuts are rich in nutrition, but should not consume too much, too much fat intake is not conducive to the health of pregnant women. It is recommended that women pay attention to a balanced diet, combine work and rest during pregnancy, avoid overwork, take drugs at will, have regular pregnancy tests, and actively seek medical attention in case of discomfort.