Pepsi initially ditched its diet recipe that replaced aspartame with sucralose, but it didn't go over well with Diet Pepsi loyalists so now it's bringing the original recipe back.

Diet Pepsi made with aspartame is returning to shelves in the U.S., after PepsiCo Inc. saw sales plummet following its reformulation of the drink last summer to remove the artificial sweetener.

The new Diet Pepsi is having a rough debut since PepsiCo replaced the artificial sweetener aspartame with less-controversial sucralose in a bid to reverse plunging industrywide diet-soda sales.

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 ...

Diet Pepsi is tweaking its formula to stay sweet a little longer. PepsiCo Inc. is testing new artificial sweeteners that let the soda keep its taste for a longer period of time. The problem is ...

The overall decline of the diet soda business continued unabated last year and, in the first quarter of 2016, sales of Diet Pepsi by volume reportedly fell 10.6 percent, while Diet Coke (still ...

Pepsi seems tired of these questions, and the company is going so far as to highlight that its diet sodas will no longer include aspartame. Bottles and cans will be labeled “now aspartame free.” ...