I was so worried that I wasnt doing my pre-op diet correct but since I started sunday I have already lost 10 pounds wowwww....Anyways my question is has anyone else lost that much that fast on their pre-op diet?....I am not even on a liquid diet im on a low carb high protein diet but it seems to have great results and this is only day 4!!!!!!

Yes you can lose alot quickly - some of that is water, but yes initially you can. You want to taper off the extreme loss soon, in my opinion, to give your body a chance to adjust and such. i say only "soon" because some people have more of a need to be at least at a certain level of weigh loss than others (knee pain, or blood pressue, diabetes and other co-morbidities), so your want of steady losss may be bettered by a rapid decent to a healthy(er) weight.

one of my friends that i met on this forum did her 2 week pre op (muscle milk light) ....and she ended up losing 33 lbs. Doc thought she could lose the rest on her own so she ended up not getting the surgery. I'll be happy with 20!

I have been on a low carb, high Protein diet since November and I lost weight initially quite quickly. I am on day 3 of the pre-op shakes. Monday morning when I started the shakes, I weighed myself and I gained 3 pounds since the day before..it was a fluke because I had less than 900 calories the day before and less than 50 gm carbs. On Tuesday I lost the three pounds and was my normal weight, today the same. With only having three 200 calorie shakes a day, I seriously hope I lose something in the next 2 weeks. (ps I was told a lot of people lose 10-20 pounds on 14 day shake plan), I won't because I already have lost my Water weight and have been doing low-cal, low carb. BOO ME!

I'm crankier today and I'm getting a bit of a headache, I think I need to up my water some.

Depending on your diet & lifestyle before, it is easy to lose a lot on the pre-op diet. I was eating fairly healthy beforehand & still lost 12.6 lbs on my pre-op diet because I was limited to 650 calories a day on it!

I lost 20 in 12 days. It is possible. In 6 weeks I've lost 43 pounds. That includes the 20 lost preop.