Fountain Drink Dispenser At A Self-serve Soda Dispenser/fountain Drink Machine: Is It Illegal To Put A Diet Soda And Not Say It's Diet?

At a self-serve soda dispenser/fountain drink machine: Is it illegal to put a diet soda and not say it's diet? - fountain drink dispenser

My goal is a local beverage vending machines (you know the kind where you press the button and go into his cup of soda). They have Cherry Coke as one of them, but said, Cherry Coke, and regular OL 'Cherry Coke. If we go, who knows what horror ... and finally to the Diet Cherry Coke. I think that soft drinks are disgusting. Also asked the employees and said it was the food.

Is not that illegal? Are not there people who are allergic to soda, because the artificial sweetener?