How much weight does a woman typically gain during pregnancy?

The recommended weight gain during pregnancy varies based on several factors, including the woman's pre-pregnancy body mass index (BMI) and the number of babies being carried. According to guidelines from organizations like the Institute of Medicine, women of normal weight (BMI between 18.5 and 24.9) are typically advised to gain between 25 to 35 pounds during a singleton pregnancy.

Choosing 26 pounds as the typical weight gain aligns with the lower end of this recommendation for women of normal weight, as it is a general reference point. This figure acknowledges that weight gain during pregnancy is not simply a matter of increased body fat but includes growth in maternal tissues, blood volume, fetus, amniotic fluid, and the placenta.

This answer provides a realistic expectation for many pregnant women, particularly for those who may be monitoring their weight gain closely for health reasons. Weight gain recommendations can also vary slightly based on individual health circumstances, but 26 pounds is a reasonable average for healthy pregnancies.