The basics matter more than anything fancy. Protein at every meal to support muscle repair — you’re on snow six days a week and your body needs to recover overnight. Complex carbohydrates for sustained energy — porridge before a morning of lessons beats a pastry every time. Hydration is critical at altitude and in cold, dry air — most people underestimate how much they sweat in a ski jacket. Avoid heavy lunches if you’re teaching in the afternoon — a food coma at the top of a run with four students watching you is nobody’s best moment. Budget for good food too — mountain resort food is expensive and if you’re surviving on noodles by February your energy and mood will show it.