Aims and Scope

JEN is dedicated to advancing high-quality basic, translational, and applied research at the intersection of exercise science, nutrition, human performance, and health. The journal welcomes innovative investigations that integrate physiological, biochemical, behavioral, and clinical perspectives to better understand how exercise and nutritional strategies influence health, performance, recovery, and disease prevention across the lifespan.

JEN publishes concise, impactful scholarship including original research, research briefs, systematic and narrative reviews, clinical case reports, and applied performance studies. Submissions should demonstrate methodological rigor, clear statistical reporting, and meaningful practical applications for researchers, clinicians, sport scientists, dietitians, strength and conditioning professionals, and allied health practitioners.

JEN welcomes submissions in, but not limited to, the following areas:

Clinical and Translational Nutrition

• Clinical nutrition interventions
• Nutrition in chronic disease prevention and management
• Obesity, metabolic syndrome, diabetes, and cardiometabolic health
• GLP-1 therapies, weight loss strategies, and muscle mass preservation
• Nutrition in aging and sarcopenia

Sports and Performance Nutrition

• Sport-specific fueling strategies
• Performance optimization through nutrition
• Recovery nutrition and muscle protein synthesis
• Relative energy deficiency in sport (RED-S)
• Weight-class and physique sport nutrition

Exercise Physiology and Clinical Exercise Science

• Exercise interventions in clinical populations
• Resistance, aerobic, and concurrent training adaptations
• Neuromuscular performance and fatigue
• Exercise prescription and dose–response relationships
• Exercise metabolism and substrate utilization

Metabolism and Nutrient Physiology

• Macronutrient metabolism
• Micronutrient status and performance
• Essential nutrients and deficiency states
• Nutrient timing and nutrient partitioning
• Mitochondrial adaptations to diet and exercise

Body Composition and Energy Balance

• Lean mass preservation and hypertrophy
• Fat loss strategies
• Energy expenditure and metabolic rate
• Hormonal influences on body composition
• Assessment methods including DXA, BIA, and imaging techniques

Hydration and Environmental Physiology

• Hydration strategies
• Dehydration and performance
• Electrolyte balance
• Exercise in heat, cold, and altitude

Supplementation and Ergogenic Aids

• Dietary supplements
• Nutraceuticals
• Evidence-based ergogenic aids
• Safety, efficacy, and regulation of supplementation
• Emerging performance-enhancing compounds

Behavioral and Lifestyle Nutrition

• Physical activity and dietary patterns
• Adherence to nutrition and exercise interventions
• Behavioral determinants of weight management
• Public health nutrition and lifestyle medicine

Emerging and Innovative Areas

• Wearable technology and metabolic monitoring
• Artificial intelligence in nutrition and exercise analysis
• Personalized and precision nutrition
• Gut microbiome and exercise interactions
• Biomarkers of adaptation and recovery