Behaviors during pregnancy have also been found to relate to the risk of excessive gestational weight gain (Figure 2).Olson and Strawdermanevaluated multivariable biopsychosocial models of gestational weight gain in 622 healthy women. In the final adjusted model, women who reported eating “much more” food during mid pregnancy were 2.35 times more likely than women who ate “a little more” food to gain too much weight in pregnancy. Moreover, women who were less physically active during pregnancy than before pregnancy were 1.7 times more likely to gain more than recommended than those who maintained or increased their physical activity. Other studies have reported similar findings and also have shown additional relationships with excessive gestational weight gain and high fat intake,low fiber intake,and high intake of sweets.These findings suggest that targeting healthy eating and modest physical activity during pregnancy may help to improve maternal weight gain outcomes (Figure 2).