Scientific Content Hub
Evidence-based articles, research reviews and scientific summaries for fitness, supplementation and longevity.
Supplement Research
Creatine Benefits Guide
Sports performance, dosage, timing, safety, sleep and practical recommendations.
Explore ->Beta-Alanine Guide
Sports performance, dosage, timing, safety, sleep and practical recommendations.
Explore ->Caffeine Benefits Guide
Sports performance, dosage, timing, safety, sleep and practical recommendations.
Explore ->Vitamin D3 + K2 Guide
Deficiency, dosage, K2 evidence, safety, athletes and product recommendations.
Explore ->Protein Supplementation
Daily protein targets, whey timing, muscle growth, fat loss and safe supplementation strategies.
Explore ->Electrolytes
Sodium, potassium, magnesium, sweat loss, cramps, endurance performance and hydration safety.
Explore ->Training Research
Muscle Growth
Hypertrophy mechanisms, training volume, progressive overload and practical programming.
Explore ->Strength
Maximal strength development, intensity, frequency, periodisation and peaking strategies.
Explore ->Recovery
Sleep, active recovery, deload strategies and optimising adaptation between sessions.
Explore ->Muscle Hypertrophy
Volume, intensity, training to failure, cardio interference, protein, creatine and recovery principles.
Explore ->Sports Hydration
Fluid intake, sweat rate, sodium, electrolytes, carbohydrates and heat performance strategies.
Explore ->Strength Training
Progressive overload, sets, reps, intensity, older adults and cardiovascular health considerations.
Explore ->Longevity Research
#1 Predictor of Longevity
20.9M observations, 199 cohort studies. VO₂ max, grip strength, and effect sizes vs. smoking and diabetes — with limitations and practical takeaways.
Read Dossier ->Healthy Aging
Muscle mass, bone density, metabolic health and evidence-based strategies for longevity.
Explore ->Cognitive Health
Supplements, lifestyle and training interventions that support brain function and memory.
Explore ->Metabolic Health
Insulin sensitivity, body composition, cardiovascular risk and practical diet strategies.
Explore ->Evidence Reviews
Creatine Side Effects
Kidneys, hair loss, water retention, cramps and myths — what the evidence actually shows.
Explore ->Creatine for Women
Benefits, dosing, hormonal context and evidence across different life stages.
Explore ->Creatine vs Beta-Alanine
How these two supplements differ in mechanism, evidence and practical use cases.
Explore ->Scientific Summaries
Research Methodology
How we evaluate evidence, select studies and translate science into practical recommendations.
Explore ->Editorial Policy
Our independence standards, review process and how affiliate relationships are managed.
Explore ->About The Iron Verdict
Who we are, what we test and why independent, data-driven reviews matter.
Explore ->Scientific References
- PubMed and PubMed Central are prioritized for research sourcing.
- Meta-analyses, systematic reviews and human clinical trials are prioritized over lower-quality evidence.