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Metabolic (VO2Max and RMR) Testing and Coaching For Performance & Weight Loss

How Can We Help?

Metabolic and VO2Max Testing.

Metabolic testing and VO2Max Testing is the gold standard assessment for measuring how many kcals you burn (your metabolism) and the type of fuel you use (e.g. fats or carbohydrates). It is used to help assess your fitness levels, generate personalised training zones and identify your fat max.

Our VO2Max and RMR tests gives you the most comprehensive and insightful health assessment allowing us to develop an accurate nutrition and workout plan to help reach your goals.

Nutrition Coaching

Box Nutrition provides one:to:one nutrition coaching. All programmes are built around you, your goals and your lifestyle to reach the results you are after.


Whether you'r looking to shed a few pounds or improve in your sport, our proven framework provides you with a plan that guarantees results.

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My name is Jack Braniff and I help individuals lose weight with metabolic testing and tailored nutrition and exercise programmes.


I'm the founder of Box Nutrition, nutrition and performance coach based in Birmingham and have my Masters degree (MSc) in Sports and Exercise nutrition. I'm also author of top-rated sports nutrition book "Fuelling The Functional Athlete", which is available from Amazon.

Our goal at Box Nutrition is to help you feel better, look better and perform better. Whether your goal is to transform your body, lose a few pounds, or compete in your chosen sport, we can help you get there. 

Jack Braniff MSc


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Chrissy - Weight loss
Phoebes - Weight loss
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Adam - Body composition
Jack - Performance and body composit
Scott - Body Composition
Wayne - Performance and body compose
Ben - Body composition
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