He needs PROTEIN and even though he is eating 3 meals a day, meat is probably one of things he is eating a lot less of so is getting less protein. Besides counting the calories, you need to count the amount of protein he is getting. I needed at least 80 grams, I'm certain he needs more. Check with dietician as to how many he needs. 8 oz. milk contains 8, add instant breakfast and it ups it to 16? (see box). 3/4 cup yogurt 8, 1 egg 7, 3oz meat, poultry or fish (size of deck of cards) 21, starches 3, veggies(1/2 cup) 2. The easiest way to get the protein and vitamins is to drink the Carnation VHC or Ensure Plus (13g) or Boost Plus. Maybe that will convince him to drink them.

It is good he is exercising because he does not want to lose muscle. Try a different brand of water if it is tasting metallic? What is he drinking it out of? Maybe a different conatiner? I lived on coffee as my water source, decaf, black no sugar sugar. No food value, but kept me hydrated. Ensure Plus was my only food for several weeks. So start counting both calories and Protein and water intake. He seems to be doing quite well so far.

Take care,
Eileen