Oprah on losing weight. A magazine at the grocery store checkstand had a picture of Oprah on it with a caption that said how she lost 40 pounds, or something to that effect. Now, I've been seeing these Oprah weight loss stories on magazines and tabloids since the eighties. Puts it on, loses some, wash, rinse, repeat.   So, my question is, in the last thirty years, how  many Oprahs has Oprah collectively lost? And why is it worth the effort?