Pregnant women who follow a healthy diet and indulge in regular moderate exercises are less likely to have a Cesarean section or gain weight as well as develop diabetes in pregnancy. <br/><br/>Researchers from Queen Mary University of London in the UK found that dieting combined with physical activity significantly reduced the mother's weight gain during pregnancy by an average of 0.7 kilogramme. It also lowered the odds of the mother having a Cesarean section by about 10 per cent, researchers said. <br/><br/>The study was published in the British Medical Journal.