I have sworn up and down that Diet Pepsi and Pepsi Zero are the same drink and the advertising was real gimmicky. I felt like they had the same differences as Diet Coke and Coke Zero, namely that both ...

I’m a veteran of the Cola wars. I remember when “Diet” emerged as the new word attached to low-calorie sodas, and when the preferred label shifted to “Light,” as in Pepsi Light. Don’t get me started ...