In addition to other items, my surgeon has very strict rules about soda consumption and smoking. I was addicted to both as a major coke addict (several a day) and smoker (1/4 - 1/2 pack a day). Never thought I'd be able to stop either but was doubly worried about the soda. I stopped coke, cold turkey, 2 months prior to surgery and the cigs 1 1/2 month. I did this because my surgeon will not knowingly operate on people that still drink soda and/or smoke. Those are his rules and I respect them.
People I have spoken to state that he has very strict pre and post op rules and they are correct but maybe this is how he keeps his complication rates low. I've no idea but I chose him to be my surgeon and feel like it is my duty to follow his rules. There are many WLS docs in my city and if I did not want to tow the line, I could have selected someone else.
Do I still crave two of my biggest vices? Hell yes, almost daily but I am trying to make positive health changes for the future. I went so far as to mutilate my stomach in an effort to lose weight so at least I can do all to make it a worthwhile endeavor.
Just my .02