September 12th every year is China’s Birth Defects Prevention and Control Day. According to national birth defects surveillance data, the overall incidence of perinatal birth defects in my country is on the rise. Birth defects not only affect children\’s health and quality of life, but also affect the quality of the entire country\’s population and health stock of human resources, and affect the healthy and sustainable development of the economy and society. A variety of vitamins and minerals should be supplemented before pregnancy. For pregnant women, eating well does not necessarily mean good nutrition. Pregnant women in my country mainly suffer from deficiency malnutrition and nutritional imbalance. Important nutrients