Amanda Sanchez, a 29-year-old working mother of two, is a self-professed Diet Coke junkie.

“It’s my water. It keeps me going. It’s the fluid that keeps me alive,” Sanchez said. “I really think I am addicted. I really think it would be very hard for me to stop.”

She drinks more than a case of Diet Coke a day, or 12 cans, almost one for every hour she is awake.

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