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Study: Diet soda can lead to weight gain

Most people drink diet soda in an effort to take in fewer calories, to help keep their weight down or take some off.

But a recent study shows drinking it could have unexpected consequences - namely, the OPPOSITE of what consumers intended.

The study, which was cited in EatingWell magazine, was done at the University of Texas. It showed that people who drank two or more diet sodas daily had a six-times-greater increase in waist circumference at the end of the 10-year study span those who didn't drink diet soda at all.

On "CBS This Morning: Saturday," contributor Dr. Holly Phillips served up the skinny on diet soda. To see her discussion, including possible reasons a product seen as a weight loss aid appears to act as the opposite, click on the video above.

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