- CISSN Masters Level 2 Certification -

For previously qualified Sports Nutrition Specialist (SNS) students on the GPNi portal, or existing dieticians, nutritionists bachelor level or higher only. 

Take your career to the next level and upgrade your skills and credentials to be the best and internationally accredited and to be considered by your peers to be a Masters Level and a Certified Sports Nutritionist, also known as CISSN Level-2 Masters.

  • Elite Master Trainer training
  • Lecturer training, and speaking
  • Code of ethics in being a professional in the community
  • A detailed breakdown on all of the ISSN Position Stands and major journals
  • Elite level of human physiology related to nutrition
  • Elite sports nutrition strategies for professional and advanced athletes
  • Elite level strategy for supplementation dosage and timing
  • Exclusively for previously SNS graduated students, or qualified dieticians / nutritionists
Enroll Now

Is The Masters Level CISSN Cert For You?

Unlike other certifications, this is not for the faint of heart.  This is only for very serious fitness professionals, master trainers, qualified nutritionists, and dieticians wanting to take their sports knowledge and service to the top level. 

  • Top level fitness professionals
  • Master fitness instructors
  • Qualified nutritionists 
  • Registered Dietitians
  • Certified Sports Nutrition Specialists (SNS) that wish to upgrade themselves 

What To Learn In The Masters Program

Combination of online on-demand learning together with "live" tutorials in a classroom online type setting together with Ph.D. academic lectures. 

  • Elite Master Trainer training
  • Lecturer training, and speaking
  • Code of ethics in being a professional in the community
  • A detailed breakdown of all of the ISSN Position Stands and major journals.
  • The elite level of human physiology related to nutrition
  • Elite sports nutrition strategies for professional and advanced athletes.
  • Elite level strategy for supplementation dosage and timing
  • Traffic light systems on supplementation (products) that are proven to work and backed by science according to the ISSN® literature and research.
  • In-depth understanding of the ISSN® Position Stands.
  • Ethics and best standards of practice for global performance nutrition.

Why Get Certified On The GPNi® Portal

GPNi® is the official global online partner for The International Society of Sports Nutrition, The ISSN®.  The ISSN® is the leading pioneer's and researcher's in Performance Nutrition globally, since 2003. 

GPNi® is an-all access portal, to begin and advance your in sports nutrition to an elite level with blossoming career opportunities.


GPNi® is the world’s first science-backed performance nutrition online education portal to be offered in multiple countries and available in multiple languages.


GPNi® has a unique blend of on-demand content, together with live tutorials and classroom style online solution to give the most authentic and quality education solution.

Plug into the world’s network fellow fitness professionals and business owners for career and learning opportunities like no other certification offers. Upgrade your knowledge also global network like no other certification can.


Exclusive access to the world’s most famous and leading sports nutrition researchers and experts through the GPNi® “Access to Experts” live tutorials. ff

Our Happy & Qualified Students

Since 2003, there have been thousands of certified students across the world that upgraded their knowledge and skills; all of which are backed by proven scientific performance nutrition research. Here are some testimonials from some of the happy student alumni! 

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The GPNi® Global Experts

“Every day I engage with athletes in my practice, helping them improve their training, body composition, recovery, and competition performance through nutrition. In order to be the best athlete, coach, or scientist you can be, you need to constantly improve and refine your practices. A key part of this is receiving the most up today evidenced-based information in your field.”

Roger Adams, Ph.D. & GPNi® Director Of Education 

  • PhD


“I am proud to have co-authored the latest version of the all-new ISSN-SNS international certification course by the GPNi®.  For those looking to upgrade yourselves to the elite level and be international certified, this is the certification for you.”

History Of ISSN

The ISSN® was 'founded' in 2003 in San Francisco USA by, Jose Antonio PhD, Doug Kalman PhD RD, Richard Kreider PhD, Susan Kleiner PhD RD and Anthony Almada MSc.

The International Society of Sports Nutrition is the only non-profit academic society dedicated to promoting the science and application of evidence-based sports nutrition and supplementation

The ISSN® is the world's leader in providing science-based sports nutrition and supplement information. The ISSN® peer-reviewed journal (JISSN®), conferences, and attendees are the key influencers and thought-leaders in the sports nutrition and supplement field.

The ISSN® conferences, tutorials, lectures and courses have been recognized (vis a vis attaining continuing education credits) by the Commission on Dietetic Registration, National Strength and Conditioning Association, American College of Sports Medicine, American Council on Exercise, American Physical Therapy Association, National Association of Athletic Trainers and other organizations as well. Members of these organizations can earn continuing education credits by attending ISSN® Conferences and Symposia.

The ISSN® is also recognized by many Universities as offering the latest, cutting edge and non-biased information about the science and application of sports nutrition and supplements.

World’s #1 Global Learning Portal For Performance Nutrition

The Global Performance Nutrition Institute (GPNi®) is the very first in the world to be truly global education solution for performance nutrition. English is considered the language of science, which is important, however the world is not entirely made up of English speakers, thus limiting access to billions of potential students wanting to upgrade their qualifications and ability.

The GPNi® is dedicated to being the being the global bridge online for all students to be able to access the world’s best research backed study, the world’s best experts and the world’s #1 global network in the field of sports nutrition.

Recognized Continued Education Credit / Continued Education Units (CEC / CEU)

(subject to NSCA’s local country partner CEC policy)

Is Getting Certified On The GPNi® Portal Worth It?

Thousands Certified Globally.  What Do The Previous Students Say?

The importance of nutrition in performance is well-known, yet the vast majority of certifications will either barely scratch the surface or offer a “Nutrition 101” version of the information. The SNS certification on the GPNi portal is different - the depth of the knowledge you’ll learn on this course goes above and beyond.  It will set you apart as a fitness professional.” ”

Holly Priestland - United Kingdom 

"I am so happy I signed up for the SNS certification. I learned a great deal more about sports nutrition than I had originally imagined.  To grow your career in fitness, where nutrition is often 80% of results, understanding and being certified is key.  Being certified by the global authority is also key.”

Emanuele Mediati - Italy

"I am a health and fitness enthusiast and already am a nutrition coach, however, I wanted specifically to learn about sports nutrition and learn from the top-level experts and researchers in the game. 

Icee Guinto - USA 

"I am passionate about learning nutrition, specifically want to learn more about performance nutrition.  I wanted to learn online as I am busy, also to be internationally certified, is the reason I chose to be certified on the GPNi portal. 

Lenka Suta - Slovakia 

CISSN Presale Details

To be eligible to be accepted for enrolment for this elite level masters level 2, and be Certified Sports Nutritionists (CISSN)

You Must Meet These Requirements Below:

  • Dietician 
  • Nutritionist 
  • Degree in exercise or sports science 
  • Previously certified Sports Nutrition Specialist (SNS) within the past 2 years

For those that do not meet the above requirements, you can;

  • Buy the package deal with SNS certification combined
  • Package discount saving up to 35% off the regular price on both certifications together.  
  • Email us for more information and details to, cert@thepni.com 

Why Get CISSN Certified?

Being amongst the captains of industry in this exclusive class of high level sports nutritionsists and master level trainers. 

"Having the CISSN gives me the confidence in providing sports nutrition advice as well as maximizing my patient's health and performance."

Erik Bustillo RD CISSN


"The CISSN credential is great! It is essential if you are working with both recreational and elite athletes." ­
Arlene Semeco RD CISSN, world­class swimmer

Presale List For CISSN Masters Level 2

Registration to a small number of students for the CISSN Level-2 Masters Presale. 

By joining the presale list,  you'll learn more about the program, save up to 25% off the regular price, and lock in your place for the very first course on the GPNi® portal for the CISSN Masters Level 2 certification.  Places are limited, so for those serious about their career advancement, and this Master Level certification lock in your place today!

The ISSN® Official Partnership With The GPNi®

The ISSN® certifications are the only internationally recognized sports nutrition certification where the content and science are created by the researchers. 

What does that mean? The Certification, Courses & Webinars are all 100% authentic content, straight from the source, and always up-to-date with the world's cutting-edge research. 

Now with the official and trusted partners with the GPNi®, get certified all-online with the on-demand course for all our ISSN® certifications, the Sports Nutrition Specialist (SNS®) and Certified Sports Nutritionist (CISSN®)

Dr. Jose Antonio

CEO & Co-Founder  (ISSN®)


Frequently Asked Questions

Upon completing the course and being certified you will be recognized globally as being qualified in your field.  No other sports nutrition or nutrition certification can offer this level of authority.  Though other certifications may have content, none of it is created by the experts that did the research itself. 

The GPNi® courses, together with the ISSN certifications are the only TRUE and authentic certification and authority in performance in the world.  All others use content and research papers by the ISSN, thus are not from the original or authentic source.

As nutrition is becoming viewed as being the most important aspect in all fitness and professional sports you will be upgrading yourself to serve others to the highest level.  Whether for your own educational purposes, as a coach, or as a professional trainer to elite athletes you will be added with the skills to work with and optimize their performance nutrition diet and strategy.

One of the most important attributes you will gain, that no other online certification can offer, or remotely does offer is; plugging into the GPNi® and ISSN global network.  Study with a “live” group class with a “real classroom” experience with our exclusive online video & chat groups. 

Connect learn, grow friends, and network with peers throughout the world. Learn from and meet the elite level experts in the world “live” online, as well in person offline.  In your career, it is often as important, if not more important to who you know, not just want you to know – with GPNi® learn and grow your connections globally!

See what others have said about studying with GPNi® here on the GPNi® YouTube Page Here.

“I was looking for the perfect course that combined theoretical knowledge and practical experience in sports nutrition for many years. I was greatly impressed with the new knowledge I gained also the course flow with the blend of on-demand content together with “live” online Zoom tutorials and class group. For those in the fitness industry, I highly recommended getting ISSN certified on the GPNi® portal and upgrading your knowledge and career at the same time.”

From Lenka Suta, SNS Graduate of SNS certification in 2021.

“I'm actually doing the course for a second time right now because I know that the course has about 40% of new information in it compared to a few years ago when I last did the course.

One of my biggest frustrations in the industry in the past has been courses where the knowledge is already outdated based on the current science, but they're very slow to update the course content. That isn't a problem that you have with the ISSN and the GPNi.”

Testimonial by SNS student, Holly Priestland from the UK

"I graduated from University Kebangsaan Malaysia and possess a bachelor's degree in nutrition with honors. Ever since I learned about nutrition, my interest is inclined towards sports and performance nutrition. So that is why I chose to join this class."

Testimonial by SNS student, Amir Shahimi, a certified nutritionist cum coach.

“In the last few days, my clients have been asking me for guidance and tips about nutrition, how to pair their workouts with their meal plan.

So I decided to attend this nutrition certification and I have to say that I learn a lot, and finally, I can give the right answers to all my clients.”

Testimonial by SNS student, Emanuele Mediati from Italy

See what others have said about studying with GPNi® here on the GPNi® YouTube Page Here.

With all GPNi® courses and certifications, you will learn sports nutrition strategies backed by the most up-to-date and cutting-edge science, research. All courses are also created by global experts in their field. 

Depending on the course or certification you choose to study on the GPNi® portal all will be covered in these areas and a great deal more:

  • When you eat may be as important as what you eat for athletic performance.
  • Nutrient timing incorporates the use of methodical planning and eating of whole foods, fortified foods, and dietary supplements.
  • The timing of energy intake and the ratio of certain ingested macronutrients may enhance recovery and tissue repair, augment muscle protein synthesis (MPS), and improve mood states following high-volume or intense exercise.
  • The right sports nutrition plan for the right athlete and athletic performance.
  • The GPNi® branded “Traffic Light System” on supplementation (products) that are proven to work, backed by science according to the latest ISSN research and later literature.
  • In-depth understanding of the ISSN Position Stands.
  • Ethics and best standards of practice for global performance nutrition.


The GPN® is unlike any other certifications and course programs currently available globally.  Firstly GPNi® is the only truly global certification in sports nutrition.  Others may claim to be “international” though are only offered in the English language and often only reside within one country or region. 

The GPNi® courses and certifications are now offered in:

1. English.

2. Chinese

3. Japanese

4. Many other languages launching soon. 

The GPNi® also has exclusive region partners to help localize the content also work with local regulations within each region now in:

1. United States

2. Australia & New Zealand (ANZ)

3. China Mainland

4. Hong Kong

5. Taiwan

6. Japan

7. Singapore

8. United Kingdom

9.  More Region Partners Launching Soon In 2022

The GPNi® certifications have all been created using the most cutting-edge sports nutrition scientific studies.  The authors of all the courses are all international experts, and Ph.D. level globally recognized lectures.  You will not find a program or course of its kind similar or in-depth to what the GPNi® offers. 

Whilst some certifications may label themselves as “sports nutrition”, most of the time they are simply general nutrition courses with a few small details about amino acids thrown in.  All the GPNi® courses cover the foundational understanding and fundamentals of nutrition, but at the same time goes very deep on all aspects of athletics and the latest research-backed sports nutrition and diet strategies that other courses do not even surface-level begin to examine. 

Many online courses offer on-demand content with a “cookie-cutter” approach to education.  For those simply looking for a “piece of paper” as a certification, other programs may be easier and suit your needs better. The GPNi® approach to education is a 360° with true “classroom” like feel with our exclusive chat classroom groups and “live” classes.  Learn from others with our global classroom and also get your “Access to Experts”, only through the GPNi®. 

The GPNi® courses and ISSN certifications are the fastest-growing internationally recognized online education now in the world.  Grow your career, network globally, and upgrade yourself to be amongst the top in the game in the performance nutrition space.

The Global Performance Nutrition Institute, GPNi® was founded in 2018 and is the official partner for The International Society of Sports Nutrition, ISSN.  In the Asia Pacific region, GPNi® is the exclusive online, as well as offline partner for the ISSN.

The ISSN since 2003 has led the world in cutting-edge research, experts, papers, and conference in sports nutrition.  With its “self-study” online exam it has also led the world in the most recognized global certifications in performance nutrition, the Sports Nutrition Specialist (SNS) and Certified Sports Nutritionist (CISSN) ISSN has also led the way.

The GPNi® has worked closely as partners with the ISSN since 2018 and in 2020 launched the first-ever online exclusive courses for the globally recognized certifications.  For the first time, ever students of the world are now able to do a dedicated course to help pass the official ISSN exams exclusively on the GPNi® portal www.thegpni.com

Beyond just passing the ISSN official online exams, the GPNi® also offers an additional exclusive certification called the Performance Nutrition Expert (PNE).  The PNE Level-1 connected to the SNS certification, and PNE Level-2 connected to the CISSN  program.  These add-on certifications also exclusively through the GPNi® additional equip students in the practical knowledge of understanding sports nutrition. The PNE certifications are graded on a case study and diet creation works to ensure students understand and can use the new knowledge adequately in everyday life.

Contact Us

Have Questions? Contact us. We're here to help.

Email: info@thegpni.com

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