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Sneak Peek: What is Gluten?

Originally aired on 9/27/2012

Could you be suffering from a gluten allergy and not know it? Dr. Oz sits down with Dr. Neal Barnard to discuss why gluten can be harmful to your health. Learn why going gluten-free could help your health, and how to do it the right way!

Guests: Dr. Neal Barnard , Brandi Evans , Steve Greenberg , Tiffany Rothe