Online Performance Coaching for Athletes - Measure & Adjust techniques

No one-size-fits-all: Our unique "Measure & Adjust" online coaching tailors your plan with AI for the ultimate transformation

At Theorem Metabolic, we believe that achieving optimal health and peak performance isn’t about one-size-fits-all solutions.

It’s about understanding your unique metabolic needs and tailoring your lifestyle, nutrition, and exercise accordingly. Founded by Justin Johnson, a lifelong fitness enthusiast and natural bodybuilding competitor, Theorem Metabolic is born from decades of experience and a passion for helping individuals unlock their true potential.

Justin’s journey, encompassing mountain biking, football, and competitive bodybuilding, has instilled a deep understanding of the intricate relationship between training, nutrition, and individual metabolic responses. Unlike generic approaches that often fall short, Theorem Metabolic utilises state-of-the-art technology and AI-powered analysis to provide personalised insights.

We go beyond basic measurements, incorporating metabolic testing, CGM monitoring, and medical-grade body composition analysis to uncover the secrets of your metabolism. Our success stories speak for themselves. Take, for instance, hybrid athlete Lottie Lamb, who, despite already consuming a high-calorie diet, was unable to make progress. Through our comprehensive testing, we discovered she had an exceptionally high metabolism and suffered from exercise-induced hypoglycaemia.

By adjusting her macros and increasing her calorie intake, we helped Lottie gain over 2 kilos of muscle mass, maintain her body fat percentage, and significantly increase her strength and endurance. At Theorem Metabolic, we’re committed to empowering individuals to achieve their goals, whether they’re everyday people striving for a healthier lifestyle or athletes aiming to reach peak performance. We believe everyone deserves a personalised approach that unlocks their unique metabolic potential.

Call today to change your life and coaching methods for the better!

Justin Johnson – Theorem Metabolic 

Metabolic analysis to achieve your performance needs as an athlete

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    Everyone's Biology is different

    Knowing your metabolic rate will ensure a better chance of a successful diet with sustained weight loss

    Longevity comes from working with your body not against it. Understand the foods that work for you and those that don't. Reinstall the youthful you with lots of energy, restful sleep and enjoy life again. Enjoy life to the full, your journey starts with

    Metabolic Testing, Body Composition Analysis and blood work

    Justin Johnson Founder - Theorem Metabolic

    SECA-mBCA525 - Theorem Metabolic

    Know your health status Now!

    Stop guessing, start knowing. Metabolic testing provides the precise data you need to optimise your health and achieve your health and longevity goals.

    Our Opening Times

    Visits during open hours are by appointment only, as we will be attending to clients at these times.

    Phone or WhatsApp Consultation

    Email us to arrange for a call back

    Simple testing carried our with results while you wait

    Finger Prick Blood Testing

    Morning Fasted Test

    Male Hormone

    £69.00
    Medical cross Theorem
    • 5 minute result time
    • 100% Private and confidential
    • 8 biomarkers translated for you

    Morning Fasted Test

    Female Hormone

    £69.00
    Medical cross Theorem
    • 5 minute result time
    • 100% Private and confidential
    • 8 biomarkers translated for you