I could only have liquids for the first 2 weeks post op, and that did not include yogurt, but every plan is different so follow yours doctors orders directly or you could end up doing damage. There will be a lot of temptation along the way, but for the betterment of your new stomach and your safety, follow the guidelines. I used measuring as my tool. I couldn’t feel much in the beginning, so I measured everything I ate. When I moved to soft foods like yogurt, I would measure out a tablespoon. If that went down ok, I would have a little more later. I think of it like this, you can go back for more, but taking it back is going to be a problem.