Zinc supplementation is generally recommended from the middle of pregnancy, i.e. after the third month of pregnancy. Zinc is very important for the normal development of the fetus. The fetus grows faster in the middle of pregnancy, so timely supplementation of zinc can promote the development of the fetus’ brain, heart, thyroid and other organs, and also prevent the occurrence of premature birth and low birth weight babies. During the preparation and pregnancy period, you should pay attention to your diet to ensure that your body zinc level is at a normal level. If zinc deficiency is found in your body, you should start strengthening zinc supplementation under the guidance of your doctor and supplement only when you need it, after scientific examination and diagnosis to avoid damage to the fetus and pregnant women. Zinc deficiency can lead to poor development of fetal tissues and organs, which can result in congenital developmental malformations and affect the normal development of its body organs and intellectual development after birth. Zinc deficiency can also lead to loss of appetite, poor sleep, physical weakness, and decreased immunity in pregnant women. Meat, eggs, fish, animal liver, coarse grains and dried beans are high in zinc, and nuts such as walnuts and melon seeds can also be a good zinc supplement, but because of their high fat content, moderate intake is sufficient. If the plasma zinc level is found to be low and the body’s needs cannot be met through dietary supplements, zinc preparations can be taken under the guidance of a doctor. If you are taking zinc supplements along with calcium and iron, you should be careful to take them separately, as trace elements can have antagonistic effects on each other and affect absorption and utilization.