The diet that will help you lose up to two inches around your waist in just 2 weeks, devised by the authors of million-copy bestseller ‘YOU: The Owner's Manual’, Drs Michael F. Roizen and Mehmet C. Oz, plus the UK’s biggest-selling calorie counter, now available for the first time in a single volume to help you shift those Christmas pounds!‘YOU on a Diet’ is not another faddy crash-diet weight loss plan: you will lose weight – and a lot of it – but you will also gain the knowledge, insight and power to keep off the pounds you lose. Knowledge is the most powerful motivator when it comes to making the right food choices: know the ‘why’ and you'll successfully handle the ‘how’.With over 700,000 copies sold, Collins Gem Calorie Counter is the UK’s top-selling calorie counter. The perfect companion when you’re following a calorie-controlled diet. This improved edition takes in new areas: Kids’ food, Fast Food and Family Favourites.