Back in the years when I was climbing mountains every weekend I ate anything I wanted and still stayed in shape or lost weight. Took lots of carbs with me, and that was the recommendation. A blend of protein and carbs to get the benefits of fast energy from the carbs and the slower payout from protein. I had a lot of trail mix and hard candy as well for those times when I couldn't stop to eat anything else or if everything else ran out.

SRS