Diet Fix

Oprah Winfrey is one of the most celebrated women in the world - she''s also one of the most famous yo-yo dieters. "It has been the battle of my life," she has said, "... a battle I am still fighting every waking moment." Anyone who, like Oprah, has endured the vicious rollercoaster of losing, regaining and then putting on more weight knows that the advice we are being given doesn''t work. So, wha...