Welcome to Carnivore Muscle
Home of The Original Carnivore Bodybuilder
I'm Jonathan Griffiths BSc — nutritionist, performance coach, author, and founder of Carnivore Team GB. Through my 800+ YouTube videos, international coaching, and living with the most painful condition known to man - Complex Regional Pain Syndrome (CRPS), I’ve helped thousands optimize their health, body composition, and mindset — all through the power of meat-based nutrition.
Whether you want to build muscle, shred fat, manage chronic illness, or finally understand what your body responds to — I’ve created the tools and systems to get you there. I live this. I coach this. I’ve suffered through it. I win with it.
I’ve lived as a carnivore since 2020. I’ve competed in multiple UK bodybuilding events while managing a degenerative spine, CRPS, autism, and CFS. I’ve studied Medical Science, hold a BSc in Human Nutrition, and my coaching reflects lived wisdom — not just theory.
I’ve been featured in carnivore livestreams and events alongside Dr Anthony Chaffee, Professor Bart Kay, Richard Smith, Coach Stephen Thomas, Harry Serpanos, and countless others.
You’re not here to fit in — you’re here to break free.
Join the movement. Book your consultation. Download an ebook. Follow Carnivore Muscle across platforms. This is where your transformation begins.
Coaching. Clarity. Carnivore.
— Jonathan Griffiths BSc
Founder, Carnivore Muscle

Work With Me
Consultations: I offer 30, 60, and 90-minute deep-dive calls to assess your nutrition, supplements, training, recovery, and biofeedback. Together, we’ll identify your bottlenecks and build a plan rooted in science, personalization, and real-world results.
Custom Diet & Training Plans: My plans are not cut-and-paste macros. They’re hand-built systems tailored to your body, goals, and constraints — whether you're new to carnivore, recovering from metabolic damage, or prepping for a show. You'll receive a comprehensive protocol that adapts to your physiology, lifestyle, and neurotype.
Ongoing Coaching: With weekly or biweekly check-ins, full access to me, and complete plan updates based on your biofeedback and progress, my coaching gives you the clarity and structure needed to thrive. You’ll also gain access to advanced techniques, recovery strategies, and neuroadaptive training for the most efficient results possible.
Coaching Plans
NEWSLETTER