Need your help in figuring out why Bill has lost so much weight

I am updating the blog as Bill is getting a sponge bath which he really needed! He seems to be loving it!

So by 3.15p, I've spoken to the nutritionist named Mika and spoke to Dr. McKinney again. I had her look up Bill's weight at admission and as of today. He has LOST nearly 40 pounds from 141 to 103 pounds over one month!!!!

Much of what they said did not and does not make any sense to me. Mika said that dialysis can take excess fluids out of the body: In fact, she showed me yesterday's record which showed over 2 kg of fluids was taken out of his body from dialysis. But it still does not make sense that this process should leave him in skin and bones condition.

McKinney's explanation was that the weight loss was just a part of the disease process and that since he is bed-ridden, he is losing muscle mass. Ok, this seems to make sense but where is all the calories (all 2000 of it) going then?? They haven't said he is not absorbing nutrients. They haven't said his body is rejecting the liquid feed. So where is all the calories going??

I know you're all very smart. Can one of you please help us figure this mystery out?