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Negative Calorie Foods: Why People Think They Can Chew Their Way Thin

Originally aired on 2/08/2016

Addiction specialist Dr. Drew Pinsky explains why the cotton ball diet became so popular and Dr. Oz demonstrates how cotton balls can become masses that block the intestinal tract.

Guests: Jenna Wolfe , Dr. Neal Barnard , Dr. Drew Pinsky , Dr. Oliver Di Pietro