Box Endure removes the guesswork from your training and nutrition with metabolic testing, enabling us to build a plan around you and your physiology.


Box Endure is a membership programme gives you access to year round metabolic testing to help support your nutrition and training so you can continue to monitor your performance, training effectiveness and adjust your nutrition throughout the year.

perform better.

look better.

feel better.

Are you struggling with how to fuel yourself correctly

Are you training with the correct intensities based on your physiology?

Are you finding it difficult to balance eating to perform and lose body fat?

Are you regularly testing to see if your training is effective?

Are you unsure about what to eat to get the most from your training, recover more quickly and look your best?

This is how Box Endure can help.

On a Run


Combining elite level testing with year round support, our testing helps remove the guesswork from your training and nutrition, and provide you with a targeted plan that gets results.

Whether you’re a runner, cyclist, adventure athlete or triathlete, we can help.

What's involved.....

Box Nutrition brings elite testing to the recreational, amateur and age-group athlete


By using state of the art equipment and methods, regular VO2Max testing enables us to analyse your data and provide you with the most accurate nutrition and training recommendations completely bespoke to your individual requirements. It also enables us to pinpoint your training zones (how hard to push) and highlight how to fuel your sessions and any races.

Your fitness is dynamic, which is why Box Endure gives you access to a full VO2Max and or remote testing every 8 weeks so you can track improvements in your fitness, monitor your fat:carb burning capabilities, adjust your training zones, update your fuelling plan and ensure your pacing strategies are correct.

the member hub

Our member hub gives you access to an ever expanding resource section on all things training and nutrition. Get access to our exercise playbook, meal plans, recipe selections, strength and conditioning workouts and guides on all aspects of sports nutrition.

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The Box Endure Member Hub is your resource centre and knowledge hub.


Join the Box Endure community to get any of your questions answers and follow along the weekly run programming, live Q@A's and support network for anything testing and nutrition related.

Who is Box Endure for?

Box Endure is for competitive or recreational endurance athletes who are looking to maximise their training and performance across the training year.​


If you're a runner, cyclist, triathlete or adventure racer and looking for those marginal gains, Endure can provide you with just that.


As the only metabolic testing membership in the UK, this programme helps accurately track your performance throughout the year and uses elite level testing to improve your training, body composition and race times.

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How Does It Work

Box Endure is a 6 or 12 month programme providing you with regular metabolic testing and access to our community and member hub.

  • 1. Tell us about yourself

    Once you sign up you will be asked to complete a client information form where you can explain to us about your goals, your  current diet and what type of exercise you do.

  • 2. Book your Testing 

    You will have access to 6 tests over 12 months. VO2Max testing will take roughly 90mins and is available at numerous locations across Birmingham or it can be done remotely.

  • 3. Get your plan

    After testing, you will receive your implementation call, which walks you through your nutrition plan and training report. You will also be setup on the members platform and gain access to our private community.

  • 4.Get Results

    The  idea with regular testing is that it is a fluid approach, whereby depending on your progress you can adjust your training and nutrition to ensure you peak at the right time.

join now

Sign up for Endure by clicking on either the 6 or 12 month package below. Once you sign up you will be asked to fill out your initial consultation form and book your first round of testing.

If you have any questions, send us a message to or call us at 0121 293 7581

My name is Jack Braniff and I help athletes perform, look and feel their best. I'm the founder of Box Nutrition and a registered performance nutritionist (SENr, CISSN), have my Masters degree (MSc) in Sports and Exercise nutrition, a member of the British Dietetics Association and a UKAD anti doping advisor. I'm also the author of top rated sports nutrition book "Fuelling The Functional Athlete"  and VDOT running coach.

Jack Braniff MSc



©2020 Endure by Box Nutrition