Level 1: Nutrients that pregnant women need to take in every week. During pregnancy, pregnant women need to take in a lot of nutrients to meet the needs of themselves and their fetus. Nutrients that need to be taken in every week include protein, iron, calcium, folic acid, vitamin D, etc. Protein is necessary for fetal growth and development, iron can help blood circulation and fetal nerve development, calcium can ensure fetal bone health, folic acid is very important for preventing fetal neural tube defects, and vitamin D helps the bone health of pregnant women and fetuses. Level 2: Pregnant women should