This week I would like to share a very interesting experiment, which has just started. Sam Feltham, a personal trainer and founder of "Smash the Fat" is undertaking 21 days of overeating. He plans to eat 5,000 calories a day. He needs approximately 3,000, so we can use the "to lose 1 lb of fat you need to create a deficit of 3,500 calorie" formula the other way round. Sam has calculated that he sh...