My surgeon did not give me any dietary restrictions. I know some do. Mine didn't.
I have some post surgery advice....WALK. ALOT. First, after surgeries, there is sometimes a risk of blood clots in your veins. You don't want that to happen, so the nurses will likely advise you to WALK WALK WALK...hours after surgery even!!! You MUST get blood flowing back into your lower legs, or the clots can form.
Walking also clears the gas out of your diaphram/abomen area. The doctor will blow up this area like a balloon... with gas so that he can get the gallbladder, which is small, without nicking or damaging the surrounding organs..like the pancreas, for example. You DO NOT want to get pancreatitis....it makes you very very sick.....hence the gas used to blow you up like a balloon. Walking helps to get rid of any excess gas that the doctor leaves behind. This is not the gas you are thinking of....this kind cannot escape via the rear end. It slowly dissolves inside you, but until it does you may feel moderate pain.....some have reported it being quite uncomfortable. The doc leaves as much out via a tube while you are still asleep ...but not all.
Walking helps the gas dissolve quicker....which equals a happier you!!!
3 days after my surgery, I walked a mile...uphill....I was short of breath, which scared me a bit, but then I remember reading that shortness of breath was normal. I walked a mile or two every day because there was NO WAY I was getting a blood clot!!!