For me, I was told my Mayo's oncology dietician was to concentrate on calories (at least 2500/day) and protein (at least 120 grams/day). I was also told to ignore anything that didn't contribute to these goals, don't worry about eating healthy, etc. In week three, all of a sudden I couldn't swallow solid foods. So for the next 2 months I just had smoothies, either with protein rich or calorie rich supplements. I have recipes if you are interested.