Nothing is off limits. Some drinks you want more of, some are fine now and then, and a few are dessert pretending to be a beverage.
Plain and unsweetened on the left. The more sugar, cream and alcohol, the further right.
Sports drinks move left when you're actually training hard or competing. Sweetened milk moves left if you're very active or struggling to gain. The columns are for an ordinary day.
"Eight glasses a day" isn't hard science, but it's a decent rule of thumb. All water counts: plain, sparkling, flavoured.
Both are in the "more" column when they're plain. Up to about five cups a day of the two combined suits most people. Past that, your body will tell you.
You don't have to go from pop to plain water by Monday. Move one step, stay there a while.
Pick one.