Never is a long time. I hate to be told I can't have something. Honestly, you can have any of these things after you have been sleeved for awhile. The carbonation is difficult for my new tummy but I still occasionally enjoy a mixed drink with soda. I can't drink it very quickly and it goes straight to my head but it is nice on rare occasions and my tummy will tolerate it. Sugar can make me feel a little yucky and I have learned I don't care for sweet stuff as much as I used to. Still, I do have some from time to time. I have a cup or two of coffee in the morning and it does just fine. I don't have high blood pressure and so I don't worry about too much salt, either. All of that said, I think it is important to stay diligent about losing the weight, especially in the first year. It gets more and more difficult to lose the weight as your size goes down and if you start figuring out how to "eat around" your sleeve. Be careful not to do much snacking and use common sense when it comes to sugary and high calorie foods and you will do ok.