Not a single program could do so. So rampant has the solaced diet industry become, with the new products and false claims that some governments have even decided now to step in and start clamping down. Being seriously overweight and particularly obesity can develop into a number of diseases and serious health problems, and it is now a known fact that when caloric intake is excessive, some of the excess frequently is saturated fat. The myth is that people get heavy by eating to many calories. Calories are a consideration it's true, but overall they are not the cause of obesity in the world today.
People actually take in fewer calories each day than they did in the beginning of the century.
If calories alone were the reason we become overweight, we should be thin. But we are not. Collectively, we are heavier than ever. Partly, it is because we are more sedentary now. But equally, as important it is the fact that the fat content of the diets has changed dramatically.