After reading about Scott Williamson's food selection on his 2nd PCT yoyo, I've become interested in the idea of protein shakes. These things are loaded with calories, and being a powder, is really good on pack weight. I"m a skinny guy already, and already fear having to keep up with calories, and not feeling exhausted once I get into the trail. although I really didn't want to do many mail drops, I may reconsider because of this. Perhaps it would be wise to do a mail drop to every other town or so, just to get some calories in. The more I think about it, and read the nutrition article on this site, the more I hate to rely on junk foods (heavy sugars and carbs) to keep me going. I really don't eat any sugar right now before leaving for the thru hike, and when I do, I typically get a really weird feeling. Surely that would go away after my body gets reaquainted with sugar on the trail, but I'm not sure I want to force that. I feel like Williamson does, and that sugar really effects my energy levels, and the crash afterward is especially painful. So protein shakes may help. Has anyone else done this on the trail, or have similar worries about relying on poor food on the trail? I would dehydrate, but was trying not to throw that into the equation...