To determine
whether current weight is in the optimal range, check the body mass index
(BMI) in table12.1 (). In women who are overweight (BMI of 25 to 29.9) or obese (BMI above 29.9), weight reduction can decrease the risk of
gestational diabetes, high blood pressure, and preeclampsia (a condition that
includes high blood pressure, fluid retention, and protein loss in the urine)