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About Us.

Tailored nutrition coaching and metabolic testing.

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 and a member of the British Dietetics Association. I'm also the author of top rated sports nutrition book "Fuelling The Functional Athlete”, which is available from Amazon.

I’ve been an athlete for as long as I can remember, I’ve been involved in fitness for over a decade and studying for my Masters Degrees in sports and exercise nutrition has heightened my frustrations with the amount of ambiguous, poor and often incorrect information that is spread by the host of unqualified influencers with regards to nutrition.


For me, it is plain to see how many recreational and even competitive athletes were failing to apply basic principles of sports nutrition to harness their performance and also improve the way they looked. The dogma attached to eating ‘Paleo’, ‘Zone’ and now ‘Keto’ as opposed to a personalised strategy has held back a number of athletes fulfilling their true potential. Instead, why aren’t we taking well-accepted sports nutrition practice from elite sports and applying it to this world of functional fitness?


This is the reason I started Box Nutrition. To help you break through the murky waters of nutrition, to use an evidence-informed approach to breakdown and simplify exactly what you need to do to perform, look and feel your best.


My goal is to help you apply a number of fundamental scientific principles to improve all aspects of this discipline? Get stronger, fitter, faster, recover more readily and build a diet around making you a better functional athlete.


To find out more about how Box Nutrition can help you, head over to to get started.

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