There is a gentleman in our nearby community that has raced RAM at least twice and a good friend of mine has worked his support vehicle. This fellow definitely does not live on liquid meals. They make sure they have real food for him on his limited stops and according to my friend, when he does stop to eat and the occasional nap, he woofs down everything they have in the car that's possible, cold pizza, scraps of what they had for lunch, whatever he can to feed the machine.
Touring for me is all about enjoyment and limiting the "sacrifice" so no, I personally won't be living on " nutritional shakes" but taking advantage of the local cuisine.
I like the way Tourist in MSN thinks