What is the ideal weight gain recommendation during pregnancy for the average woman?

The ideal weight gain recommendation during pregnancy for the average woman, particularly those with a normal pre-pregnancy body mass index (BMI) ranging from 18.5 to 24.9, is between 25 to 35 pounds. This guideline helps ensure that both the mother and baby are healthy, as adequate weight gain supports fetal development while minimizing risks associated with underweight or excessive weight gain.

Weight gain during pregnancy is essential for the growth of the fetus, expansion of maternal tissues, and increased blood volume. The 25 to 35-pound range allows for sufficient calorie intake while maintaining a healthy maternal weight, reducing the risks of complications such as gestational diabetes, hypertension, and preterm birth.

Recommendations can vary based on the mother’s pre-pregnancy weight; however, for an average woman of normal weight, the 25 to 35 pounds range is considered optimal. This has been supported by numerous health organizations, including the Institute of Medicine, which provides these guidelines to promote the health of both mother and child during pregnancy.