Michael Mosley — best known as the inventor of the 5:2 diet — has said that people looking to lose weight could see major results with his Fast 800 diet.
Those who undertake the diet cut down massively on the number of calories they consume per day to just 800 for as long as 12 weeks before moving to the former doctor's Way of Life diet.
With countless diet options available, it can be hard to know whether to trust one of the others — especially if it promises significant results in a short time.
