Some fad diets are so weird they can't possibly be true. Can you tell the difference between a real diet and one that's pure B.S.?

The Morning Banana Diet has taken the world by storm (and caused a banana shortage in Japan). Now, Oprah is reportedly just wild about the GenoType Diet -- where your genes determine exactly what food you should eat. Both of these diets sound a bit whack, but they're for real. Think you can spot a fake diet? Take our quiz!