We eat "meals" twice a day. Oatmeal/berries in the a.m. often with some warmed gatorade, a fiber bar/goo for lunch, and coucous, or a soup, etc. for dinner.
We all have a pocket of mini gobstoppers too. They work wonders for keeping the energy up and mouth wet.
I would think that 75% of the weight of all of our sheep/goat camp meals is simple water which springs right up near our annual camp.
It ain't pleasurable, but it's superlight.

And we do lose weight on the mountain, no way to get around that short of packing twice the food.
We sure talk about Fast Eddie's in Tok a lot! I wish I had a buck for every mention of that place on the sheep mountain.
We gorge there before and after every sheep hunt.