Obesity and excessive weight gain in pregnancy have significant associated maternal and fetal complications including gestational diabetes, large for gestational age infants, birth trauma, and stillbirth. The standard of care places the responsibility on the providers during prenatal visits to remind patients of their weight gain goals and provide appropriate counseling. The objective of this study is to evaluate a sustainable medical student-assisted longitudinal program of nutritional counseling and web based nutrition tracking for pregnant women on excessive weight gain during pregnancy and the effects on diet choices and fetal and maternal complications.