They’re driven to eat chalk, baby powder or cigarette ashes. It’s called pica – and it’s more common than you know. Dr. Oz talks to 2 women suffering from the disorder and investigates the serious bodily harm they’re causing. Could someone you know secretly be suffering from this?

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Click here to watch Part 2. 

Click here to watch Part 3. 

Click here to watch Part 5. 

You've heard of red wine and white wine but have you ever heard of blue wine? This blue version of wine is given a taste test to see how it compares to the classics.