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

Originally aired on 2/08/2016

First there were zero calorie foods. Now, negative calorie foods: can they help you eat your way thin? We put them to the test. Plus, extreme diets: Dr. Oz investigates the strange new trend of eating cotton balls to lose weight.

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