Just a note that Kate Farms has more sugar proportionally than other tube formulae I would look at: Whole Story, Real Food Blends, and Liquid Hope. Sugar is not a villain, but it's not the hero either.
Totally agree that good fat/protein are key building blocks to preserving muscle/all-day energy as much as possible. But when you don't have a tube yet, the same principle applies -- real food, good food, enough food but not too much. And blend smooth when you need to -- even pureed meat.
The first things to go when swallowing becomes more difficult are kernels, seeds, nuts (but not nut butters blended into a smoothie), skins, stringy produce and such.