Gavin Clearkin


Gavin ClearkinGavin Clearkin is an internationally recognised IOC (International Olympic Committee) sports nutritionist. Originally from New Zealand, he has worked around the world in elite sport for many years and has a wealth of experience in all aspects of nutrition. Gavin runs Performance Nutrition Services Ltd, a sports nutrition consultancy. His clientele includes:

  • People from a wide range of individual and team sports (from amateur to elite)

Performance Nutritionist for:

  • New Zealand Cricket
  • NZ Rugby League
  • NZ Breakers Basketball
  • Being a qualified Dietitian he also works with non-sports people (including many clinical populations)

Prior to working in private practice Gavin was employed full-time in elite sport both in New Zealand and the United Kingdom. His work experience included:

  • Senior Performance Nutritionist with High Performance Sport NZ (HPSNZ) – 2010-2013
  • Lead Performance Nutritionist for Athletics NZ and a host of other Olympic and non-Olympic sports
  • Auckland Blues Rugby Performance Nutritionist – 2012-2013
  • NZ Warriors Performance Nutritionist – 2010-2012
  • English Institute of Sport (EIS) Senior Performance Nutritionist – 2007-2010
  • Worked as Lead Performance Nutritionist for England Cricket, England Women’s Rugby, GB and England Hockey (men and women)
  • Scottish Institute of Sport (SIS) Lead Performance Nutritionist – 2007



  • Bachelor of Nutrition and Dietetics (Hons)
  • International Olympic Committee (IOC) Post-Graduate Diploma in Sports Nutrition (2 year course graduating in Switzerland at the IOC Headquarters)
  • Diploma in Fitness Training and Exercise Physiology (1 year full-time)
  • ISAK Level 1 (body composition assessment)

Gavin’s interest in sports nutrition stemmed from his time working as a personal trainer in London in the late 90’s. This led him to move to Australia to begin his nutrition studies in Sydney. Gavin worked as a consultant dietitian/sports nutritionist in Sydney before returning to the UK to pursue his career as a full-time sports nutritionist. Gavin believes that the combination of nutrition and exercise physiology is very important as you need to understand what happens to the body in response to exercise in order to fuel it properly and provide the right amounts of key nutrients for optimal performance, recovery and adaptation.

“I work successfully with a lot of cyclists of all experience levels in my practice. I have a particular interest in the physiological challenges that come with endurance exercise and how to best manage these through proper nutrition. In terms of nutrition for different sports, cycling in particular is the one we know the most about because it has been used extensively in sports nutrition research. Therefore, you can rest assured knowing that the sports nutrition advice I give you is tried and tested and backed by a substantial body of scientific evidence. I take a balanced view of the science and look at scientific fact to help dispel the many myths that exist in the nutrition world today.”


In order to get the most out of your cycling performance you need to know the answers to some key questions such as:

  • What fuels does my body need at differing intensities or durations?
  • What sources of these fuels are best?
  • To maximise my results what is the best fuelling and hydration strategy for me individually to use in competition? Same applies to training – what is best here too?
  • Can sports foods (e.g. sports/electrolyte drinks, gels, bars, etc.) and other supplements help my performance on the bike, my recovery and training adaptations?