Shrek
WKR
I have no idea what your base calorie needs are but for myself ( 6'4" , 265lbs ) if I get less than about 3300 calories a day when just working and everyday life I start to loose weight. I would bet that the cold and climbing is more than doubling your calorie needs. If you look at the calorie content of your mountain house meals and cliff bars you will be astounded at how much you need to eat when out hunting. If you are lean to begin with your body is going to really start in on your muscles over a long season. I'm new to this and I am planning my first trip out west for next year. When I looked at food it amazed me at how much I would need to keep up my endurance. Have you lost weight over the season ? If you have then your muscles have taken a hit.