I am 5 weeks tomorrow, and I have lost about 25 since surgery. Everyone varies, and there are plateaus and stalls for both surgeries. Whichever you choose, it really helps to have after pictures. I take one every wednesday (give or take a day), that way when i get discouraged that i think i should be loosing a lb a day, i can look at the pictures and notice the difference The biggest thing is getting into a long term eating habit that will help you succeed for life, not just for a year or two.