I am thinking about aiming for sleeve surgery next summer. It is very scary to me because I am worried about the major changes to what I eat and not being able get past head hunger. So one thing I am challenging myself to do is make changes now. I am in my 8th week without diet soda. I had a major addiction to diet coke/diet pepsi/diet dr pepper. I drank it from morning to night. I don't drink coffee. I have replaced the soda with iced Water and the occasional flavored water. Never thought I could do it. But I am doing it and I am, dare I say it, proud of myself.
Having said that follow your Dr and Nut.