Use the Amazon link and get the Carnation Very High Calorie. I use that too. Its next to impossible to find it in any store. I have lost all my teeth from radiation damage. He can eat anything he is able too. The only limits are what he is uncomfortable eating.

Here is a link for easy to eat foods that I compiled a while ago. I eat alot of tapioca pudding with whipped cream. I make several large bowls a few times per week. That is very fattening. Chocolate milk is 400 calorie a pint, that would sooth his sore throat. I also drank alot of yoo-hoo. Push the fluids and calories, if your dad would get the right amount today then tomorrow he would be feeling better already. Hope he understands how important this is. Without the right nutrition/hydration he will struggle and feel terrible.

http://oralcancersupport.org/forums/ubbthreads.php?ubb=showflat&Number=94621#Post94621

Once your dad has the feeding tube placed, it will be easier to keep track of the calories. Make sure you ask for a pump to go with it. He will be getting prescription feeding formula. I still use a can of the Carnation VHC for the hi calories along with my regular formula.

Ask the doc for the fentanl patches. They are stronger than morphine and regulate the medication evenly over a 3 day time frame. Much easier.

Glad to hear your sister will be on too. Nobody does this alone. I didnt have a caregiver the first time around with chemo/radiation and I paid dearly for it. Hope your father learns from my mistakes.