Platform & Mission
Evidence-Based Strategy. Zero Compromises.
BodyCompOS was founded to bridge the gap between complex peer-reviewed sports science and practical, everyday fitness tracking. We replace standard static calculators with an active operating loop: assessment, strategy recommendation, calorie setting, timeline planning, and progressive trend reassessment.
Science-First Integrity
We use validated equations (Mifflin-St Jeor, Katch-McArdle, US Navy) directly from peer-reviewed literature. No fabricated algorithms or quick-fix magic numbers.
100% Local Privacy
Your body measurements, weight trend, and biological stats are stored exclusively in your browser's local storage. Your personal data never leaves your device.
Adaptive Guidance
Calculators shouldn't just output a number and stop. BodyCompOS helps you adapt targets dynamically based on your real-world weekly check-in results.
Expertise Behind the Platform
Divy Yadav
Founder & EditorCSCS (Certified Strength & Conditioning Specialist) • PN1 Coach
Divy Yadav is a certified sports performance and nutrition coach specializing in evidence-based body composition strategy. He founded BodyCompOS to translate complex sports science formulas into clear, actionable guidelines, with a strict commitment to local-first privacy.
Our Editorial Process
Body composition advice online is plagued by commercial bias, sponsored supplement recommendations, and extreme caloric targets. To ensure BodyCompOS remains a trusted, objective resource:
- Strict Vetting: Every calculator logic and strategy guide is designed and peer-reviewed by Divy Yadav, CSCS, referencing original medical and sports science papers.
- Evidence Citations: All assertions regarding protein requirements, metabolic adaptation, or bulking limits link back to public journals or DOI databases.
- Continuous Updates: We review content quarterly to integrate new meta-analyses, and immediately patch any discrepancies submitted via our corrections portal.
BodyCompOS is Educational Software
All calculations, strategy suggestions, nutrition targets, and metabolic forecasting calculations are educational estimates derived from population-average equations. They are not clinical diagnoses, medical assessments, or personalized prescriptions.
Always consult a medical professional before starting a caloric deficit, entering a training cycle, or modifying macronutrient ratios if you have pre-existing conditions, renal or metabolic issues, eating disorder history, or are pregnant/nursing.
Ready to Assess Your Body Composition?
Skip the guesswork. Use our multi-step Strategy Finder to assess your stats, identify your focus pathway, and calculate initial protein and calorie targets.