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What Does an RER Above 1.0 Mean During Exercise?
A practical guide to respiratory exchange ratio (RER), carbohydrate vs fat use during exercise, and why RER above 1.0 usually appears during hard efforts.
Sports Nutritionist vs Nutritionist | What Does a Sports Nutritionist Actually Do?
Learn the real difference between a sports nutritionist and a general nutritionist, why behavior change matters, and how sports nutrition professionals build client-centered plans for performance, recovery, and body composition.
Think Protein Is the Problem? Vegetarian Athletes May Need to Watch These Nutrients Even More
A practical guide to vegetarian sports nutrition: why protein is not the only concern, how amino acid complementation works, and why vitamin B12, iron, and zinc matter for performance and recovery.
Protect Your Muscle While Cutting: 4 Things That Matter Most
Worried about losing muscle during fat loss? Learn how to maintain muscle while cutting through smart nutrition, strength training, recovery, and stress control.
Preventing Low Energy Availability (LEA) in Adolescent Female Athletes: A Sports Nutrition Perspective
An ISSN educational recap from GPNi: what LEA and REDs are, why adolescence is high-risk (bone + hormones), red flags, screening tools, and prevention steps.
Career Spotlight: Steven Shen - Two Decades of Sports Nutrition Education, Built on Standards
A two-decade journey in sports nutrition education: Steven Shen on building teaching systems, connecting with ISSN-aligned standards, and guiding supplement use responsibly.
Word From the Founder: The “Passport Test” That Changed How I Think About Sports Nutrition Careers
Drew Campbell, CISSN shares the “Passport Test” for sports nutrition careers—and why GPNi® is the only global, ISSN-backed pathway with real network access.
Creatine for the Brain: Beyond Muscle - Is There a Cognitive Benefit?
Creatine reliably helps strength—but what about cognition? Here’s what systematic reviews show, who benefits most, and practical dosing.
Preventing Low Energy Availability (LEA) in Adolescent Female Athletes: A Sports Nutrition Perspective
An ISSN educational recap from GPNi: what LEA and REDs are, why adolescence is high-risk (bone + hormones), red flags, screening tools, and prevention steps.
Word From the Founder: The “Passport Test” That Changed How I Think About Sports Nutrition Careers
Drew Campbell, CISSN shares the “Passport Test” for sports nutrition careers—and why GPNi® is the only global, ISSN-backed pathway with real network access.
A Word From the Founder - Why Sports Nutrition Knowledge (and Network) Is the Path to Earning More
If there is one truth I’ve learned in more than 30 years in the sports nutrition and fitness world, it is this:
A Word From the Founder of GPNi® - Where Real Sports Nutrition Begins
Today all over the world, people are looking for answers to the questions of the field of sports nutrition, performance and overall health.
Choosing the Right Sports Nutrition Certification: What Really Matters
If you're considering getting a sport nutrition course You're not alone. The need for trained
Career Spotlight: Peng Xie - From Gym-Floor Coaching to Evidence-Based Teaching
From coach to educator: Peng Xie on evidence-based learning, teaching sports nutrition, and building a credible career through structured certification.
Word From the Founder: In Sports Nutrition, Who You Know Matters as Much as What You Know
Learn why career growth in sports nutrition is driven by credibility, connections, and recognised education. Discover the GPNi® advantage: ISSN-backed pathways, community, and global network.
Why GPNi® Exists: A Founder’s Perspective on Real Sports Nutrition Education
If you are researching sports nutrition certifications, you have probably already noticed something confusing.
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