The single most important factor in producing a healthy baby is a healthy placenta. The placenta, which is actually a part of the foetus, is essential for all aspects of pregnancy, from conception to delivery. Keeping it healthy includes lots of iron-rich foods because the baby absorbs a lot of iron from the mother's blood. Consuming nutrient-dense calories and iron-rich foods will aid in the maintenance of a healthy placenta and the prevention of conditions like iron deficiency anaemia. Exercising during the pregnancy also keeps the placenta healthy.