Thankfully my husband is getting his 7 cans (2625 calories, as recommended by dietitian) and I aim for 80 oz. of water. Wasn't sure if we were hitting that since he would tell me he drank some from a glass. I marked 5 bottles of 16 oz. water 1-5 today and just put the last one in the tube. Of course he protested saying he was FULL but I told him he would be sleeping in a minute. Also put in some juice for extra. Tonight he had tried cheerios, I asked how much and he said "8". WOW!! I think everything tastes so bad he mentally can't keep it down. He is actually looking at a cruise for the end of May, I won't be booking till he is back to eating. (I don't dare mention to him how long it could take to be back to normal.)