Accession Number:

ADA248607

Title:

Nutrition and Hydration Status of Soldiers Consuming the 18-Man Arctic Tray Pack Ration Module with Either the Meal, Ready-to-Eat or the Long Life Ration Packet during a Cold Weather Field Training Exercise

Descriptive Note:

Final rept. Jan 1991-Mar 1992

Corporate Author:

ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA

Report Date:

1992-03-01

Pagination or Media Count:

252.0

Abstract:

This lO-day test evaluated two Army Field Feeding System feeding modalities TMRET and TLLRPT with 96 male soldiers participating in a cold weather field training exercise. Nutritionhydration status was assessed from foodfluid intake, body weight and percent fat changes, and urine specific gravity. Energy expenditure was measured on a sub-sample n20 who also provided blood samples, and a 24-h urine sample for nitrogen balance. Mean energy intake was similar between groups 3271 and 3035 kcald for the TMRET and TLLRPT groups, respectively meeting about 70 of MRDA, and 77 of energy expenditure. Mean intake of protein, vitamins and minerals was adequate except for the TLLRPT groups vitamin B6 58 of MRDA. Body weight loss 1.1 and 0. 6, respectively was significant p 0.05 within, but similar between groups. Body fat decreased 10.6 and 4.9, respectively. Mean nitrogen balance was positive indicating that the energy deficit was not exerting a severe metabolic stress. Further, psychophysiological data indicate that neither group was severely stressed and the rations provided were sufficient to sustain them. Although the LLRP received higher acceptability ratings than the MRE, all the rations were well accepted. It was concluded that neither feeding regimen was better than the other in preventing body weight loss or maintaining nutrition hydration status. Thus, the feeding modality chosen for Cold Weather Field Feeding depends upon environmental conditions, mission parameters, and water availability and heating capabilities. Nutrient intake, Ration acceptability, Hydration status, Activity patterns, Psychophysiological symptomatology, Energy expenditure, Stable isotopes, Nitrogen balance, Cold weather nutrition.

Subject Categories:

  • Food, Food Service and Nutrition

Distribution Statement:

APPROVED FOR PUBLIC RELEASE