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Oz Investigates: Which Pain Products Really Work For Your Back?

Originally aired on 5/19/2017

Consumer Reports deputy editor Lisa Gill reveals the concerns behind iodine, one of the most common ingredients in drugstore thyroid pills. Plus, Dr. Oz explains what can happen to your thyroid when you have too much iodine in the body.

Guests: Dean Dimitruk , Dr. Steven Shoshany , Dr. Aviva Romm , Lisa Gill