NUTRITIONAL HYDRATION FOR COLD ENVIRONMENTS
An adequate energy source is most important in a cold environment. The US Military concludes that the energy needed for a person in a cold environment is between 4000 to 5000 kcal because a great amount of energy is required to keep warm. Carbohydrate foods are preferred over fats again because they are easier to use by the body, and glucose and glycogen, made from carbohydrates, are required for the shivering process.
