I was told the same thing about the gummies getting stuck - my doc recommended chewables or ones that can be crushed and sprinkled in things. And taking the multivitamin with the calcium was a no-no because the calcium blocks the iron absorption and vice versa. We also were advised to take the calcium in 500mg does throughout the day rather than all at once because the absorption isn't as efficient with larger doses (and also a reason to separate calcium from multi-vitamin, because your multi might also have calcium). According to my pre-op class, we have to take a multi-vitamin, calcium citrate, fiber, and vitamin D if the calcium doesn't have it. And the class instructor gave us Bariatric Advantage samples, although I'm not sure I'll use them.