Diet Pepsi Swaps Sweeteners in Response to Declining Sales

Customer complaints driving switch from aspartame to sucralose.
1:27 | 08/11/15

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Transcript for Diet Pepsi Swaps Sweeteners in Response to Declining Sales
Ginger's forecast coming up New version of a popular diet soda is hitting stores this week, responding to consumer health concerns, Pepsi has made a big change, ABC's Rebecca Jarvis has more. Reporter: This morning, with soda sales sizzling a bold new move by one major beverage company hoping one small ingredient change will get its brand bubbling again. New versions of diet Pepsi hitting grocery store shelves as we speak. They're now available without aspartame. Pepsi replacing it with another artificial sweetener sucolose. To see the sales declining year after year, they have to do something to try to stop that. Reporter: The sweetener switch coming in as nearly two-thirds of Americans saying they're actively avoiding diet soda. Telling ABC news, diet cola consumers in the U.S. Have asked us for an aspartame-free Pepsi and we're responding. One person responding, diet Pepsi, why did you do this? #Awful. Another, what have they done to my diet Pepsi. For "Good morning America," Rebecca Jarvis, ABC news, new York.

This transcript has been automatically generated and may not be 100% accurate.

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