Soldiers generally need at least 4 to 6 quarts of fluid per day when at altitude because of the extremely dry air. At least 1 quart of fluid must be consumed every 3 hours to meet the requirement. Small amounts of food should be eaten frequently - every 2 hours. Encourage drinking as much fluid as can be tolerated. Alcohol is particularly dangerous at altitude where one needs to deal with cold temperatures and hazardous terrains.
Alcohol increases body heat loss and decreases the blood supply to the exercising muscle.
In addition, the body requires more oxygen to metabolize alcohol. DO serve at least one hot meal per day. DO provide food variety and plan snacks. DO discourage high-fat, pogey bait snack items and alcohol consumption. DON'T use mountain exercises as an opportunity to lose weight.