Folic acid, also known as vitamin B9, is a water-soluble vitamin B. It is an essential nutrient that our body cannot produce on its own, so we must obtain it through diet. The human body needs folic acid to carry out some basic processes that keep us healthy. For example, folic acid helps the body form healthy red blood cells. These cells help transport oxygen and nutrients to the lungs and human tissues; they also form blood clots to prevent We lost too much blood when we were injured. In addition, red blood cells also help the kidneys and liver filter waste in the blood and purify the blood. Secondly, folic acid is also very important for cell division. Based on this, studies have found that folic acid helps prevent birth defects of neural tube defects. Therefore, it is recommended that pregnant women take more folic acid during pregnancy to ensure that your unborn child can grow and develop normally.