1. Why do pregnant women need iron supplements? During pregnancy, the mother\’s body requires more iron to support the growth and development of the fetus. Iron is an important component of hemoglobin, a key molecule that carries oxygen to all parts of the body. If a pregnant woman is deficient in iron, it will lead to anemia and other problems, which will affect the normal development of the fetus. 2. Which foods are rich in iron? 2.1 Animal foods Beef, pork liver, eggs, fish and other animals