It's actually totally safe. There is no scary shit in diet soda that isn't also in regular soda. Zero calorie sweeteners have more scientific literature on them than any other food product, and every paper that uses real science says they are totally safe

The sweeteners they use are 600 times sweeter than sugar but have the same calories per gram as sugar so they put so little it's under 1 calorie which they can round down to 0

Dawg it's just a joke relax your skeet™️ popped up on my skyline™️. No need to get your knickers in a twist