What is the appropriate weight gain per week during the second and third trimesters of pregnancy?

During the second and third trimesters of pregnancy, the recommended weight gain is approximately 1 pound per week for those who are of average weight prior to pregnancy. This guideline reflects the increased energy and nutrient demands on the body as the fetus grows and develops. Proper weight gain during this period is crucial for the overall health of both the mother and the baby, supporting essential fetal growth and ensuring the mother has adequate reserves to support this increased demand.

Weight gain varies based on pre-pregnancy body mass index (BMI), but for average-weight individuals, aiming for around 1 pound a week helps align with the typical expected total gain of about 25-35 pounds throughout the pregnancy. This rate allows for healthy fetal development while minimizing excessive gains that can lead to complications.