In OW/OB pregnant women without GDM, adiponectin values were negatively correlated with pre-pregnancy BMI (r = −0.49), BMI at 24–28 weeks of pregnancy (r = −0.47), subscapular and suprailiac thickness (r = −0.41 and r = −0.39), and CRP values (r = −0.41), and positively correlated with TC values (r = 0.55) and LDL-C (r = 0.41). This evidence concerns the gene ADIPOQ and gestational diabetes.