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?

Note: Volunteer services for Saneika James' pica treatment will be provided by Melainie Rogers, founder of BALANCE Eating Disorder Treatment Center.

Click here to watch Part 1. 

Click here to watch Part 2. 

Click here to watch Part 3. 

Click here to watch Part 4. 

100-Calorie Spicy Potato Chip Recipe

You don't have to resist this low-calorie snack!

The Dish at Home gives you a snack you don't have to resist with these low-calorie spicy potato chips.