Coca-Cola is bringing back a flavor that is so beloved they sell it on eBay. However, there’s a small catch.

If you’re the type of person to crack open a diet soft drink at 3 p.m. when you’re looking for a pick-me-up without the ...

For years you could get a large McDonald’s Diet Coke for 99 cents. It was one of life’s certainties like death and taxes. But ...