Learn from Experts Master in Nutrition Education

Get certified and receive international recognition from the official partner of The International Society of Sports Nutrition (ISSN)

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GPNi® offers comprehensive 360° access to Nutrition Education for a healthier you!
  • On-Demand Learning
  • Live Streaming
  • Group Study
  • Social Network
A Gateway to Professional Education
GPNi® is the official exclusive global platform and partner for The International Society Of Sports Nutrition (ISSN) courses.

What do our students say?

Discover the impact of our programs through the success stories of our previous students and witness the quality of our education

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Transforming my body and life in the past few years wasn’t easy work - it took a lot of perseverance. 35kg body fat loss would have been impossible without the right knowledge and attitude. Learning from the best with the GPNi® and the ISSN certification I highly recommend anyone looking to improve their lives for the better.
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James Thompson
Business owner
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Over the past few years, my interest in sports and nutrition grew, while the different concepts and opinions seemed confusing. The SNS course was a challenge for me, as I have no prior educational background on this topic, but professional teaching, a well- structured outline and access to the latest science information connected all aspects to a coherent picture of sports nutrition.
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Claudia Sachse
SNS Student
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l've been in the healthcare industry for 16 years. I am actually a certified nutrition coach, however, I wanted to learn more about sports nutrition, and that's why l'm very excited to learn from ISSN and to meet everyone else.
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Icee Guinto
Certified Nutrition Coach
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“Learning from the best helped me lose 35 kg and change my life for the better.” I’m James Thompson, a business owner, and I lost 35 kg over the past few years. This transformation wouldn’t have been possible without the right knowledge and support. The GPNi® PNE Level-1 + ISSN-SNS certification helped me organize nutrition science into a clear, practical framework. I highly recommend this certification to anyone serious about improving their health and fitness.
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James Thompson
Business Owner
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“A world-class sports nutrition course that truly cares about your growth.” I’m a registered dietitian from Cyprus with a Master’s in Clinical Nutrition, and I chose the GPNi® x ISSN CISSN® program to update my evidence-based sports nutrition knowledge. What stood out most was the world-class teaching and the supportive learning environment. The structured online lessons and live expert sessions turn research into practical tools I can apply immediately with athletes and active clients. The team genuinely cares about my growth.
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Andreas from Cyprus
Clinical Nutrition
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The GPNi® PNE Level-1 + ISSN-SNS certification provided me with the scientific depth I was looking for in sports nutrition. The course connected research with real-world application, giving me practical tools to use with athletes and clients. I highly recommend it for anyone serious about performance nutrition.
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Holly Priestland
Student
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I’ve always understood how important nutrition is for performance, but many certifications I found either skimmed the surface or were basic. Enrolling in the GPNi® PNE Level-1 + ISSN-SNS certification gave me the scientific depth I had been searching for in sports nutrition education. What truly sets this certification apart is the evidence-based performance nutrition it offers. It connected research with real-world application, helping me stand out in the field.
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Holly Priestland
Sports Nutrition Student
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I’m Emanuele Mediati, a fitness trainer in Italy. The GPNi® PNE Level-1 + ISSN-SNS certification gave me the science-based knowledge I needed to confidently guide my clients. The course was more than expected, and I now feel fully equipped to support clients and advance my career. “I finally feel confident giving my clients the right, science-based answers about nutrition.”
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Emanuele Mediati
Fitness Trainer
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I’m a registered dietitian from Cyprus with a Master’s in Clinical Nutrition, and I chose the GPNi® x ISSN CISSN® program to update my evidence-based sports nutrition knowledge. What stood out most was the world-class teaching and the supportive learning environment. The structured online lessons and live expert sessions turn research into practical tools I can apply immediately with athletes and active clients. The team genuinely cares about my growth.
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Andreas
Clinical Nutrition
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I’m James Thompson, a business owner, and I lost 35 kg over the past few years. This transformation wouldn’t have been possible without the right knowledge and support. The GPNi® PNE Level-1 + ISSN-SNS certification helped me organize nutrition science into a clear, practical framework. I highly recommend this certification to anyone serious about improving their health and fitness.
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James Thompson
Business Owner
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The GPNi® PNE Level-1 + ISSN-SNS certification provided me with the scientific depth I was looking for in sports nutrition. The course connected research with real-world application, giving me practical tools to use with athletes and clients. I highly recommend it for anyone serious about performance nutrition.
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Holly Priestland
Student
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I’m Emanuele Mediati, a fitness trainer in Italy. The GPNi® PNE Level-1 + ISSN-SNS certification gave me the science-based knowledge I needed to confidently guide my clients. The course was more than expected, and I now feel fully equipped to support clients and advance my career.
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Emanuele Mediati
Professional Fitness Trainer
Global Expert Talks At Seminars & Partner Facilities
Our expert team travels to join many key global expos, fitness education shows throughout the world. An integral part of all major fitness and nutrition expos such as:
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Start Your Journey and Become a Certified ISSN Sport Nutrition Specialist
Start your career in sports nutrition with expert-led lessons tailored to your goals. Choose the right path for you and start your journey to becoming an internationally recognized ISSN Sports Nutrition Specialist.
Who makes up our Panel of Experts?
Meet the minds shaping your learning experience
Looking for the right sports nutritionist?
Find a qualified sports nutritionist who is right for you. GPNi has thousands of freelance nutritionists & dietitians with a broad range of specializations and interests
View list of Nutritionists
Frequently Asked Questions
Discover everything you need to know with quick, clear insights from our comprehensive FAQ section, designed to help you navigate easily.

The CISSN stands for Certified Sports Nutritionists. The acronym, CISSN is recognized by many academics and is for those really wishing to be recognized globally to be at the top in your field. This certification is for high-level coaches, nutritionists, and dieticians that wish to have a laser focus on the most up-to-date research-backed studies.

Students looking to study for the CISSN would ideally have 5 years prior experience and be SNS Level-1 qualified or another relevant tertiary degree. The certification is for those that wish to work with the amateur and/or professional athlete population. With course content elements of the course ranging from professional weight cutting to banned in sports regulations and ensuring your athlete remains healthy and safe.

This certification is recognized as top-level in sports nutrition certifications globally. The GPNi® is the official partner and has the exclusive online course for the CISSN with "live" classes to work with some of the top experts in the world.

The CISSN certification by the GPNi® is available now in English, Chinese, and other languages launching soon.

Enrollment Gives You Immediate Access To: 

GPNi Student Center with total on-demand 20+ hours of video tutorial classes 
Digital online course study book
Presentation assessment and grading for PNE Level-1 certification 
Online exam for the ISSN-SNS certification. 
Access to global sports nutrition experts to ask questions. 

Additional Free Bonuses 

One-year free GPNi membership - worth USD$99 a year (GPNi Members Corner) 

GPNi Membership Includes: 

  • Exclusive Access to GPNi online “Members Corner”.
  • Online sports nutrition tools
  • GPNi-TV sports nutrition conferences of the world (ISSN + Sports Dietician) with over 50 hours of content free.
  • Exclusive Members WhatsApp group
  • Exclusive Facebook Private Members Group
  • 2.5 CEC upon yearly renewal
  • Once a month ability to GPNi “Ask an Expert” a private question.

Course Materials / Clothing / Merchandise (Optional Extra) 

  • Full course book
  • 2 x study guides
  • 1 x GPNi T-Shirt
  • 2 x GPNi steal pens

(PLEASE NOTE: Materials + Logistics Additional Fee = USD$149)

The CISSN, by the GPNi®, is far more advanced and is the preferred certification for those who wish to provide more detailed sports nutrition information to their clients and professional athletes. SNS is a critical foundation course for those at an earlier stage in their career, or who need a foundation to begin in performance nutrition.

The SNS focuses more on the applied aspects of sports nutrition and is meant for those who do not have a strong foundation in place and need to learn the fundamentals first.

Through the GPNi®, SNS is a prerequisite in being able to apply for CISSN Masters also. Only those that have completed the SNS Certification program, or have a relevant degree in nutrition can apply for the CISSN.

For those that wish to do the CISSN, that are not yet qualified, you can learn about the "Masters Pack," which includes both the SNS and CISSN together. The GPNi® Masters Pack helps fast-track you with your career and qualifications, also has some moderate discounts for the pack as well for both.

GPNi New Official Payment Plan

GPNi now offers Payment Plans on all the PNE Level-1 + ISSN-SNS and Level-2 Masters + CISSN international certifications exclusively on the GPNi platform. 

Pay only 50% to get started RIGHT NOW & 50% when you wish to complete the certification, sit the official exam. Use Coupon Code "PP50%" at checkout to use the payment plan method.

Terms & Conditions

What You Will Get Access To Immediately Upon Paying The 50% Payment Below:

- Access to your GPNi Private Student Center account.
- Full course access with on-demand video content + digital course book.
- Exclusive Facebook Private "Members Corner" group.

Upon Paying 100% Of The Course Fees, Additionally, You Will Have Access To Below:

- Able To Sit The Official ISSN Certification Exams
- Ability To Have Your Presentations Graded By GPNi Experts For the PNE Level-1 or PNE Level-2 Masters Certification.
- Be listed on the Certified Coaches section of the GPNi site
- Attend All The "Live" Class Sessions
- Network & Grow New Friends Globally In Exclusive Allocated Groups Classes
- FREE GPNi Members Corner Membership Activated

PLEASE NOTE - The Payment Plan may be slightly different in different countries and regions depending on what policy the GPNi Region Partner has in place. To determine what is available for Payment Plans if you are in the United Kingdom, China Mainland, Taiwan, Hong Kong, Japan, Australia, New Zealand, or Singapore, don't hesitate to contact our official GPNi Region Partners in these regions.

For all other markets that GPNi operates directly, such as the United States, South America, Canada, and Europe, the above applies.

For those who are internationally based, own a business, and are in the fitness education space, please check out our Exclusive Region Partner section to learn more about representing the GPNi in your region.

Use Coupon Code "PP50%" at checkout to use the payment plan method after choosing the certification that is right for you.

Get into Contact With US now to learn more, or set up a one-on-one video chat with one of our student advisory experts to answer all the questions and give you a full access “screen share” of what you will learn and the GPNi Student Center Access NOW.

With all GPNi courses and certifications, you will learn sports nutrition strategies backed by the most up-to-date and cutting-edge science and research. Global experts also create all courses and sports nutrition researchers.
Depending on which course and level certification you choose, you will learn the below areas + a great deal more.

  • When you eat may be as important as what you eat for athletic performance.
  • Nutrient timing incorporates methodical planning and eating 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 for performance and recovery.
  • The GPNi branded “Traffic Light System®” on supplementation (products) has 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.

Upon completing the course and being certified as a Sports Nutritionist, you will be recognized globally as qualified. 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 science & research on sports nutrition.