Dr. Oz's 3 biggest weight loss lies, debunked

Dr. Mehmet Oz reaches more people in a day than most doctors reach in a lifetime. But his popular advice show is often based on bad science or no science at all. That's why he was dragged to Capitol Hill this summer for a spanking by Sen. Claire McCaskill. Here are three of his biggest lies and how different he sounds when he's forced to tell the truth.

Narrated by Julia Belluz
Produced by Joss Fong, Joe Posner, Alex Hawley
TV rigging by Marcos Bueno

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