Nutritional counseling is a central element of preconception care and the initial parental visit. The following are the weight gain recommendations, based on the Institute of Medicine (IOM) 2009 guidelines. Note, the IOM was renamed the National Academy of Medicine in 2015.
Singleton pregnancy:
Twin pregnancy:
Gestational weight gain below the recommendations
Gestational weight gain above the recommendations
In a systematic review of over 1 million pregnant women, most did not meet the IOM targets, with 47% gaining more and 23% gaining less than IOM recommendations. ACOG recommends using judgment and individualized care. Medications for weight management are not recommended during the time of conception or during pregnancy. Rather, dietary control, exercise and behavioral modification are the primary weight management strategies during pregnancy.
ACOG Committee Opinion No. 548: Weight Gain During Pregnancy
IOM: Weight Gain During Pregnancy: Reexamining the Guidelines
ACOG Practice Bulletin No. 230: Obesity in Pregnancy
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