The researchers found that the predicted and actual weight gain matched exactly in children, leading them to conclude that the increases in energy intake alone explained the weight increase during the period in question. “For adults, we predicted that they would be 10.8 kg heavier, but in fact they were 8.6 kg heavier. That suggests that excess food intake still explains the weight gain, but that there may have been increases in physical activity over the 30 years that have blunted what would otherwise have been a higher weight gain,”
