What are good protein/vitamin/nutrient rich things to eat before strenuous activity at high altitude?

Wish it was clearer!: Being well hydrated is most important & in a positive calorie state so your body has ready fuel is also critical. Studies examined high protein, high fat, and high carb diets &- while answers vary at very high altitude-a balanced diet is wisest in general. Tiny support perhaps for a 2001 study of daily vitamin c 1000 mg, vitamin e 400 mg, and 600 mg lipoic acid but i opt for Diamox to climb hard.