Got a few pounds to lose? Cancel the gym membership. An increasing body of research reveals that exercise does next to nothing for you when it comes to losing weight. A result for couch potatoes, yes, but also one that could have serious implications for the government's long-term health strategy
Champion dieters are paraded by rival slimming organisations, but what happens after they lose the weight? Do their lives change – and is it always for the better? Simon Hattenstone investigates