My son is having jaw surgery on July 13 and I am trying to get helpful advice. I have been reading up on everything possible, but need food advice!!! He is 16yo, 6'4" and 230lb... I have to find a way to get enough calories in him to keep him going. It is amazing how much he can eat and being on a completely liquid diet for 2 weeks is going to drain him. I am prepared for weight loss, but what can I do to keep some of the weight on him? The doctor has told me 2 days in the hospital and then 2 weeks wired shut.... swelling similar to wisdom teeth removal. Anything further that we need to be prepared for?