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Low-Carbohydrate High-Fat Diets for Military Performance: A Strategy for Realizing Performance Advantage on the
Daniel Rowland1,2, Helen Kilding3, Joanne L Fallowfield1
1Ministry of Defence, London, SW1A 2HB, United Kingdom.
Military Medicine
|September 24, 2025
Summary
Low-carbohydrate high-fat (LCHF) diets may enhance military performance in demanding operational environments. Further research is needed to confirm the efficacy of LCHF as a strategic nutrition intervention for land forces.
Area of Science:
- Military Nutrition
- Human Performance Optimization
- Operational Effectiveness
Background:
- Current military nutrition guidelines align with general health and sports performance, recommending high-carbohydrate, moderate-fat diets.
- Military personnel face unique operational demands in multi-stressor environments, differing from civilian and athlete performance characteristics.
- Land forces operate with increasing autonomy, requiring self-sustained nutrition during extended missions.
Purpose of the Study:
- To examine the hypothesized benefits and evidence for a low-carbohydrate high-fat (LCHF) diet in land-based military operations.
- To define the specific demands of military roles and characteristics of personnel relevant to nutritional strategies.
- To propose a novel model for LCHF diet application as a strategic human performance intervention.
Main Methods:
- Review and commentary on existing literature regarding LCHF diets and military performance.
- Analysis of occupational demands and personnel characteristics for land-based operations.
- Identification of knowledge gaps and recommendations for future research.
Main Results:
- Early research suggested potential benefits of LCHF diets for military applications, but robust evidence is limited.
- Conducting controlled nutrition studies in military settings presents significant challenges.
- LCHF diets remain a subject of debate within military nutrition science.
Conclusions:
- A novel model for targeted LCHF dietary intervention is proposed to support military human performance.
- Significant knowledge gaps exist regarding the efficacy of LCHF diets in military populations.
- Future research should focus on evaluating this proposed model and addressing identified gaps to optimize operational effectiveness.
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