If you’re a saxophone player….. you should drink water!
Before you play and in between playing.
Drinks with sugar in them are terrible for saxophones. As is anything greasy. Or any food type sort of thing.
Ideally, you should brush your teeth before playing. George Young generally brushes and flosses before playing.
If you have a soda before playing the sugar will make your pads sticky and they’ll get stuck to the tone holes and possibly cause small tears in the pads which can lead to leaks in your horn and you sounding bad.
So brush your teeth or at least drink water/rinse your mouth before playing saxophone.
Drinking water is better for you than getting an overload of high fructose corn syrup anyway.