What is the calorie increase recommended for the third trimester of pregnancy?

During the third trimester of pregnancy, the body undergoes significant changes as the fetus continues to grow and develop. The recommended calorie increase during this period is approximately 452 extra calories per day. This increase is necessary to support the energy demands of both the growing fetus and the physiological changes the mother experiences, such as increased metabolic rate and the development of maternal tissue, including the placenta and breast tissue.

Inadequate caloric intake during this critical period can lead to insufficient fetal growth and development, potentially impacting the health of both the mother and the baby. It is important for pregnant individuals to focus not only on the quantity of calories but also on the quality of their diet by selecting nutrient-dense foods to meet both energy and nutritional needs.

The other options provided do not align with current nutritional guidelines for the third trimester, which specify the approximately 452 extra calorie intake as being most appropriate to support a healthy pregnancy outcome during this stage.