I like to put lemon or vitamins (those tablets that also create fizzyness) in my water and have been wondering if it is problematic to do so in my aluminium drinking bottle. I wouldn’t normally think so, since soft drinks also often come in aluminium cans, but I’m not sure. Are aluminium salts even unhealthy?
As others mentioned there’s plastic between the soda and can. You can see it in this NurdRage video. Odds are that your bottle doesn’t have it, so it’s probably a bad idea to store acidic drinks in it. (Including sodas.)
Aluminium salts can be toxic although I’m not sure on how much Al would leak into your drink.