Diet Pepsi came first. It's been around since the 1960s and uses aspartame as its sweetener. Pepsi Zero Sugar (formerly called Pepsi Max) is newer and uses a blend of aspartame and acesulfame ...

Stacey Leasca is an award-winning journalist with nearly two decades of newsroom experience. She is also the co-founder of Be a Travel Writer, an online course for the next generation of travel ...