Our study group also was analyzed based on initial BMI group. Women in the overweight (BMI 26–29) and obese (BMI higher than 29) BMI groups were less likely to adhere to the IOM guidelines. Overweight women in each of the groups were adherent 30.0% (intensive counseling) and 25.0% (routine care) of the time. Obese women in each of the groups were adherent 33.3% (intensive counseling) and 20.0% (routine care) of the time, compared with 80.0% (intensive counseling) and 68.8% (routine care) among participants with healthy BMIs. There was no statistically significant difference in adherence across BMI groups between the intensive counseling and routine care groups when adjusted for BMI (Table 4). The most predictive factor of IOM adherence was having a normal prepregnancy BMI (Table 5).