Diet Pepsi

In this Saturday, Aug. 8, 2015 photo, bottles of Diet Pepsi with, left, and without aspartame, center and right, sit in a case at a store in New York. In response to customer feedback, PepsiCo said earlier this year that it would replace the aspartame in Diet Pepsi with another artificial sweetener that has less baggage. (AP Photo/Candice Choi)

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