Climb high and sleep low. It is best not to increase the sleeping altitude by more then 2,000 feet at a time. Set up camp at lower elevations and take day trips to high points. Ferry loads up to a high camp and then return to the low camp to sleep as you acclimatize. Hydrate Eat a high carbohydrate diet.
Carbohydrates require less oxygen for metabolism than fats and proteins.
However, a diet of exclusively carbohydrates does not meet the body's overall nutritional needs. Eat protein and fat on rest days. Avoid eating fats and protein at night. The combination of decreased respiratory rate during sleep and increased requirement for oxygen to metabolize fats and proteins increases the risk of altitude illness. Drink copious amounts of fluid.