When I want a little sweet treat I make smoothies.
My base is always frozen banana + milk + oats then do one of these:
Cinnamon + vanilla
Pumpkin + pumpkin spice+ brown sugar
Strawberries/blue berries
Cost like under a dollar to make a good cup and they are pretty filling.
I swear I read somewhere that diet sodas had the equivalent amount of regular sugar but as artificial sweetener so it wasn’t really all that healthy. Apparently I’m wrong about this.
https://health.osu.edu/wellness/exercise-and-nutrition/diet-soda-bad-for-you
Edit: found one that says it has linked health risks to diet sodas but it’s not too sure why.
https://archive.is/dLM1a