Tired of different diets? Follow the blood type diet, a favourite among Hollywood celebrities. Allow your Blood Type Decide what you eat. Girls Aloud singer Cheryl Tweedy follows the Blood Type diet to maintain her fitness The blood group diet has long been the diet secret of many enviable Hollywood stars' bodies — now Girls Aloud singer Cheryl Tweedy admits she is a fan too. "My mum told me about Eat Right For Your Type, which shows you what to eat and what to avoid depending on your blood type," she said in a recent interview. "It's made such a difference to my energy levels. Now I believe in it 100 per cent." Other followers swear it works when it comes to shedding fat, boosting energy and even preventing illness. WHY BLOOD TYPE DIET? Each blood type evolved at a different point in history so we should adopt diets similar to those our ancestors had when our blood group evolved. By eating foods that your personal blood type can easily digest, you will lose...