? about pre-surgery liquid protein

I forgot to ask my nutritionist yesterday why solid protein cant be eaten. I was told why I have to be on protein, but why only liquid? Why not plain meat as well?

my protein level was low prior surgery.....I purchased isopure from GNC and mixed it with milk....but was told to eat also meats, eggs, cheese, etc.

liquids pass thru the liver easier... also the purpose of the liquid diet is too be eating as little fat as possible

My husband has to do 10 days of a liquid diet pre-surgery. The doc said it was to shrink the liver so they don't have to lift and move it as much during surgery.