What is the recommended weight gain for a pregnant individual with a BMI of less than 18.5?

The recommended weight gain for a pregnant individual with a BMI of less than 18.5, which indicates underweight status, is indeed in the range of 28 to 40 pounds. This recommendation is based on guidelines from organizations such as the Institute of Medicine (IOM), which delineates weight gain recommendations based on pre-pregnancy BMI categories.

These guidelines are crucial because gaining an adequate amount of weight during pregnancy is essential for the health of both the individual and the developing fetus. Underweight individuals are at a higher risk for preterm birth and low birth weight infants. Therefore, the higher recommended weight gain helps to promote better fetal growth and development. The range of 28 to 40 pounds provides a target to ensure sufficient nutritional reserves and support the overall health of the pregnancy.

Other options, such as the ranges provided for individuals with different BMI categories, are lower and do not adequately address the needs of someone who is underweight. This distinction underscores the tailored approach required in prenatal care, recognizing that each individual's health status can influence weight gain recommendations.