Trusted Partners


The former back-to-back European Champions Cup Rugby winners and current Premiership champions have been setting the standards in European and domestic rugby for many years.

As Official Sports Nutrition Partner to the London based Club for over six seasons, Optimum Nutrition has worked closely with the management and players to ensure the squad consistently reach the Gold Standard Zone in training and on the pitch.


Optimum Nutrition is the Official Performance Nutrition Partner to Mac-Nutrition Uni, the world’s leading 12-month, evidence-based, online nutrition course to become an Insurable MNU Certified Nutritionist.

Optimum Nutrition products feature in the relevant course modules and are available to students at MNU residential education days and at all of the Mac-Nutrition Collective events.

English Institute of Sport

The English Institute of Sport are the team behind the team, delivering a range of performance-impacting solutions to Olympic and Paralympic sports along with a select number of non-Olympic sports through a nationwide network of expertise and facilities. The EIS strives to be the world’s leading institute of high performance sport.

Optimum Nutrition is proud to be a “Preferred Supplier to the EIS” with many of their practitioners using Optimum products as part of performance focused with teams and athletes.

ESSNA Kitemark

European Specialist Sport Nutrition Alliance members abide by a strict Code of Conduct which ensures that products are compliant with the law.

The ESSNA kitemark represents a promise by the company that its products follow the letter of the law to protect consumers.

Human Race

Human Race is the largest and most diverse mass participation events company in the UK, with a portfolio of over 35 events each year covering running, cycling, swimming and triathlon.

Optimum Nutrition is proud partner to the Human Race Series of events and will be providing Optimum Nutrition’s GOLD STANDARD range of products to help participants in their training, recovery and performance on race day.

Find out more and sign up to cross your next finish line!

Irish Sailing Logo

Team Ireland’s sailors compete and perform at the highest international standards in European and World Championships and at the Olympic Games and regularly finish on the podium.

Optimum Nutrition is the Official Sports Nutrition Partner to the Irish Sailing Association Performance Team and support these endurance athletes with a broad range of sports nutrition products to meet their performance nutrition needs while in the gym, on the road or out on the water.


With an unrivalled four European Cup titles in ten years, Leinster Rugby are the most successful club in modern European rugby.

Optimum Nutrition has been the Irish Province’s Official Sports Nutrition partner for nearly ten seasons and has worked closely with the management to develop and deliver  

sports nutrition support consistent world-class performance.