ArticleMilitary Medical Research2019
Comparison of dietary intakes of Canadian Armed Forces personnel consuming field rations in acute hot, cold, and temperate conditions with standardized infantry activities.
Article in Military Medical Research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.
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Who cites it
11 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Mapping smart technologies and nutritional strategies for monitoring cognitive resilience in military personnel under extreme operational conditions: a scoping review.Frontiers in nutrition · 2026Pooled it
- Effects of Acute Heat and Cold Exposures at Rest or during Exercise on Subsequent Energy Intake: A Systematic Review and Meta-Analysis.Nutrients · 2021Pooled it
- Metabolic and ruck performance effects of a novel, light-weight, energy-dense ketogenic bar.Experimental physiology · 2023Trial
- Cold weather operations: Preventive strategies in a military context.Temperature (Austin, Tex.) · 2025Review
- Cognitive, Psychophysiological, and Perceptual Responses to a Repeated Military-Specific Load Carriage Treadmill Simulation.Human factors · 2024Article
- Article
- Performance nutrition for cold-weather military operations.International journal of circumpolar health · 2023Article
- Comparison of Energy and Nutrient Intake vs. Estimated Needs in Warfighters: an Update.Current nutrition reports · 2020Review
- Fundamental Concepts of Human Thermoregulation and Adaptation to Heat: A Review in the Context of Global Warming.International journal of environmental research and public health · 2020Review
- Energy Balance of Canadian Armed Forces Personnel during an Arctic-Like Field Training Exercise.Nutrients · 2020Observational
- The effects of exercise and ambient temperature on dietary intake, appetite sensation, and appetite regulating hormone concentrations.Nutrition & metabolism · 2019Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundDietary Reference Intakes are used to guide the energy intake of the Canadian Armed Forces (CAF) field rations provided to military personnel deployed for training or operations. However, the high energy expenditures likely to occur under harsh environmental/metabolically challenging deployment conditions may not be adequately considered. This study examined the Ad libitum energy and nutrient intakes of CAF personnel (n = 18) consuming field rations in a resting thermoneutral environment and during a day of standardized strenuous infantry activities at varying environmental temperatures.
methodsDietary intake was assessed using a measured food intake/food waste method during the experimental treatment and for 6 h after treatment. Four treatments were administered in a randomized counterbalanced design: exercise (as standardized infantry activities) in the heat (30 °C), exercise in the cold (- 10 °C), exercise in temperate thermoneutral (21 °C) air temperatures and a resting (sedentary) trial (21 °C).
resultsThe average Ad libitum consumption of field rations was 70% of the provided total energy (2776 ± 99 kcal/8 h) during all treatments. Even with an acute challenge of increased energy expenditure and temperature stress in the simulated field conditions, participants' energy intakes (1985 ± 747 kcal/8 h) under hot, cold and temperate treatments did not differ from energy intake during the sedentary condition (1920 ± 640 kcal/8 h). Participants' energy intakes (1009 ± 527 kcal/6 h) did not increase during the 6 h posttreatment period when the stresses of the strenuous physical activities and the harsh environmental temperatures had subsided.
conclusionThese results should be considered when planning the provision of field rations for CAF personnel expected to be engaged in strenuous physical activities with prolonged exposure to temperature extremes.
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