A Low Glycemic Load Diet During Pregnancy in Overweight Women

Glycemic Load and Infant Birth Weight in Pregnant Overweight/Obese Women

This study will compare the effects of a low glycemic load versus standard diet for pregnancy on outcomes related to risk for obesity, diabetes, and heart disease in both mother and infant.

Inclusion Criteria:

• Pregnant women with prepregnant or first trimester BMI equal to or greater than 25 kg/m2 and less than 45 kg/m2
• Singleton pregnancy
• Willing to consume the diets for duration of pregnancy
• Participant to be at week 28 or less of pregnancy at baseline visit

Exclusion Criteria:

• Smoking during pregnancy
• Major medical illness (e.g., diabetes mellitus, hypertension, thyroid disease)
• Patients taking prescription medication known to affect body weight
• Alcohol consumption during pregnancy
• Patients who declare their intention to deliver infants in the environment outside of Beth Israel Deaconess Medical Center, Boston
• High level of physical activity