The Role of Water Consumption on Consumption of the Ration, Cold Weather
Abstract
Two squads of Light Infantry volunteered to test the role of water consumption on consumption of the Ration, Cold Weather (RCW). One squad was encouraged to drink at least 3 L/man/day (Group 1) while the other served as the control (Group 2). The test was conducted in conjunction with the 6th ID winter warfare training (Callous Warrior). Pre and post measurements were taken along with daily monitoring of food intake, water intake, body weight, and hydration status. Both groups consumed water in excess of 3 L/man/day and their hydration status could be described as high normal (elevated specific gravity and decreased sodium/potassium ratios). There were no significant differences in the energy intakes of the 2 groups, but they only consumed 54% of the energy required (4700 kcal) to maintain body weight (Group 1 lost 3.2% and Group 2 lost 4.1%). Group 1 and 2 consumed a total of 2734 and 3029 kcal, respectively. The main reason for periods of low consumption was the lack of hot water for hydrating ration components when the Yukon stove was not operating. The results of this study indicate zinc and folacin need to be increased in the RCW. To use the RCW as a stand alone ration for the Light Infantry, modifications are necessary in the delivery of water and in methods of heating water to allow individuals to produce hot water. Water consumption needs to be encouraged and containers issued to allow the troops to carry water inside their clothing to prevent freezing. Keywords: Caloric intake, Body weight loss, Nutrition.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 22, 1989
- Accession Number
- ADA208602
Entities
People
- B. J. Mcguire
- C. A. Salter
- D. B. Engell
- D. E. Roberts
- M. S. Rose
Organizations
- United States Army Research Institute of Environmental Medicine