Surgeons that order you be on a high protein pre-op diet to shrink the
liver mean what they say. There are a lot of surgeon's out there who
do not order a pre-op diet. Why? It may be because the patient does
not have an elarged fatty liver, but it can mean that the surgeon's has
more experience in operating around fatty livers.
My doctor has done over 5000 operations for lap band. They don't want you to eat so that your liver isn't fatty so when they are wrapping the band around your new stomach they don't hurt your liver and it's out of the way. The bigger you are the bigger the organs are. Remember they have to go to the top of the stomach. So the liver needs to be out of the way so he can get to it.