So I started my preop diet yesterday I’m a little worried I’m going to be that one person that doesn’t lose weight. I weighed myself yesterday and today no change when should I see a change if any?

Unless your surgeon has given you a specific goal to meet, I wouldn't worry about it. The goal of the pre-op diet is mainly to shrink your liver to make the surgery easier. People tend to lose weight, but I didn't really--I had already lost some pre-surgically, but the mostly liquid diet didn't make much change for me. But you'll lose, and quickly, in the month or so after the surgery, and then the rate of loss will probably slow, and you'll have stalls, but you'll continue losing if you follow the plan you're given.

And, for what it's worth, you shouldn't ever pin your hopes on a change in a day or two--sometimes you'll have one, often you won't. As someone wise pointed out in one of these forums, when we were gaining all our weight, we still didn't put on a pound every day or two. It took time then and it'll take time coming off--the big advantages of the surgery is that you'll almost certainly lose quickly and, even better, you have a better chance of keeping it off and developing new, healthier habits (over time).

No worries, I felt the same way. Ended up losing about 14 pounds in a week of liquid diet, and I smacked a bit and cheated haha. You’ll be surprised how quick you’ll drop it. Those scales can really be harmful to you, don’t check it all the time!

It seems like every person is concerned they will be one person who doesn't lose weight on the pre-op diet. If you truly believe that, you'll will it to be true. Instead, do what you know you need to do & you will lose weight. Good luck. You are not alone.

Thank you all who replied and gave me advice, I said I wouldn’t be obsessed with the scale and already am and it’s just the beginning I decided to put away for now!