Your nutritionist will be the best one to talk to because she has the pre-op diet on paper , but you can do Jello of any kind sugar free of course, crystal lite, Protein any flavor,pop sickles any flavored,you can eat won-ton Soup or chicken broth or beef broth,,,I quote from the last writer,please follow the instruction of the doctors please,because the way there telling you now is what you have to learn to do for the rest of your life,
Just remember this is a life change,not a temporary change of life,you will have to do this for the rest of your life...good luck with everything.