Dieters, if you’ve hit a weight loss plateau, try going OFF your diet for 2 weeks. That advice comes from the International Congress on Obesity. They found that people who switched on and off from a diet plan lost more weight than those who continuously dieted. That’s because intermittent dieting prevents your metabolism from slowing down too much – which usually happens when you cut back on calories. So try 2 weeks on and 2 weeks off, then keep going back and forth.