Pepsi Looks to Sweeten Diet Brand

Tweaks formula ahead of major campaign

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In early December, PepsiCo began rolling out a new sweetener mix for Diet Pepsi that sprinkles in acesulfame potassium—an ingredient used in sister brand Diet Mountain Dew and Coca-Cola's Diet Sprite—with the beverage's mainstay sugar replacement, the more widely used aspartame. The tweaked Diet Pepsi formula has hit the shelves in a few markets nationwide but will be seen in retail locations throughout the U.S. in the coming weeks, according to an Associated Press story.

"It's not like a light switch," PepsiCo spokeswoman Andrea Canabal told the AP.

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