Let’s get fizz-ical. A Toronto-based registered dietitian has evaluated the healthfulness of the no-calorie diet sodas Coke Zero and Diet Coke — and the results are soda-pressing for Coke fans.

Coke Zero vs. Diet Coke: a clash of the titans. Now, I'm an '80s kid, and for decades, Diet Coke was my beverage of choice. Sorry, Tab—your pink cans were stylish ...

but most people don’t even know how a diet drink gets categorized as zero calories. Soda usually gets its bad reputation because of how high in sugar it is. So some associate diet and zero ...