Proven World Class Knowledge, Expertise and Practice

"The nutrition services I provide are not just for optimal performance in sport but also for optimal performance in life, business, health and well-being.  All nutrition plans are individually tailored to suit your specific needs."

I've worked around the world in elite sport for many years and have a wealth of experience in all areas of nutrition. My qualifications include a Bachelor of Nutrition and Dietetics (Hons) and the International Olympic Committee (IOC) Post-Grad Diploma in Sports Nutrition (2 year course and graduated in Switzerland at the IOC Headquarters).  In addition to my nutrition qualifications I also have a Diploma in Fitness Training (1 year full-time).  I believe the combination of nutrition AND exercise physiology is very important as you need to know what happens to the body in response to exercise in order to fuel it properly and provide the right amounts of key nutrients for recovery and adaptation.  

Past Work Experience:

  • Lead Performance Nutritionist for NZ Cricket, Kiwis Rugby League, NZ Breakers Basketball
  • Senior Performance Nutritionist for the English and Scottish Institutes of Sport, and High Performance Sport New Zealand
  • Elite Sports Nutritionist for:  England Rugby, England Cricket, GB Hockey, and numerous other British Olympic athletes, Lead Nutritionist for Athletics NZ, NZ Warriors Rugby League, Auckland Blues and Auckland Rugby, Emirates Team NZ, Taekwondo NZ, NZ Sailing, Triathlon NZ, NZ Softball, NZ Hockey, Archery NZ, and many more NZ Olympic athletes
  • Clinical Dietitian in Australia including Outback Clinics 
  • Many years experience working as a Personal Trainer and Fitness Instructor - prior to starting my sports nutrition career

Current Practice:

My focus is now on Private Practice nutrition work at my practice in Stonefields, Auckland, New Zealand.  I have expanded my scope of practice significantly and my current client base includes many athletes and non-athletes, Weekend Warriors, people training for events (e.g. Marathons, Bike races/rides,Triathlons, Ironman, Coast to Coast, XTERRA, etc.), people wanting to drop weight and body fat, gain muscle, improve health and well-being, improve work performance through better nutritional practices, etc. 

Whether you are an athlete or non-athlete, elite or non-elite, I can certainly help you out.  I don't just work with sports people either so please get in touch if you're unsure.

I have extensive experience in the use of supplements to enhance sports performance and general health and well-being and have designed many supplements on the market in NZ and the UK - I know which supplements work to achieve the best results in training, recovery, competition and general health and well-being.  I have spent years working with labs around the world to develop testing programs to ensure supplements are World Anit-Doping Agency (WADA) compliant so all the supplements I recommend are completely legal and safe from a WADA standpoint.  I should also point out that I am a firm believer in food first and only recommend supplements if appropriate.  

Key Services include:

  • Sports Nutrition
  • General Weight Loss
  • Body Fat Loss and Lean Muscle Gain
  • Clinical Nutrition
  • Corporate Nutrition
  • General Health and Well-Being
  • Advanced Supplementation Advice
  • Optimising Body Composition
  • ​Fertility Nutrition
  • Online Nutrition Consultations available
  • School Sports Nutrition 

Why should you choose my service?

There is a lot of confusion and conflicting information out there in the world of nutrition and diets.  I provide clear, concise and practical solutions to eliminate the confusion and get you real results.  All the information you will be given is scientifically sound, evidence-based, up to date and qualified.  This information is also tried and tested through many years of study and practical application - I know what works and what doesn't.  It is always better to get the right information the first time so you don't waste precious time or money.  Please email or call now for more information or to book an appointment.

Gavin Clearkin

Performance Sports Nutritionist and Dietitian

BNutr Diet (Hons), IOC PG Dip Sports Nutr


"Nutrition not just for optimal performance in sport, but also for optimal performance in life, business, health and general well-being"


Wendy's launches all-new Vodafone Warriors Burger with the help and expert input from the club's sports nutritionist Gavin Clearkin.  See article here

Vodafone Warriors pre-season training with consultations from Warriors Nutritionist Gavin Clearkin.  See article here

English Institute of Sport Nutritionists are part of the inaugural graduating class for the IOC Post-Grad Diploma in Sports Nutrition.  See article here