What is the recommended weight gain for a woman with a normal BMI during pregnancy?

The recommended weight gain for a woman with a normal BMI during pregnancy is typically between 25 to 35 pounds. This guideline is established by the Institute of Medicine and is intended to promote the health of both the mother and the developing fetus.

Weight gain in this range supports the necessary physiological changes occurring during pregnancy, including the development of placental and maternal tissues, an increase in blood volume, and the growth of the fetus itself. Adequate weight gain also helps reduce the risk of complications, such as preterm birth and low birth weight, which can arise from insufficient weight gain.

It's essential for expectant mothers to monitor their weight gain throughout pregnancy, as both insufficient and excessive weight gain can lead to health issues for both the mother and the baby. Therefore, the recommendation of 25 to 35 pounds aligns with current guidelines to ensure a healthy pregnancy outcome.