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Why I Still Ask Questions After 30 Years in Sports Nutrition
GPNi founder Drew Campbell explains why curiosity, evidence checks and better questions remain essential after 30 years in sports nutrition.
Safety of creatine supplementation: analysis of the prevalence of reported side effects in clinical trials and adverse event reports
Results demonstrate that Cr supplementation does not increase the prevalence or frequency of side effects when compared to participants ingesting PLA.
Paraxanthine provides greater improvement in cognitive function than caffeine after performing a 10-km run
This study examined whether ingestion of PX with and without CA affects pre- or post-exercise cognitive function.
Anti-inflammatory effects of nicotinamide mononucleotide (NMN) in human skeletal muscle after BFR-exercise
NMN supplementation, while inhibiting inflammatory signaling in exercised human skeletal muscle, may also suppress mitochondrial replenishment from phagocytes to repairing myofibers.
Creatine in women’s health: bridging the gap from menstruation through pregnancy to menopause
Creatine supplementation presents a promising strategy for enhancing various aspects of women’s health across the lifespan.
GPNi® Career Insights | A Career Across the Stage, the Gym, and the Industry
IFBB professional athlete Sara Willis explains how bodybuilding, personal training, pharmaceutical sales, and bioactive ingredients became one sports nutrition career.
GPNi® Career Insights | The Office Hours That Open Doors
Michelle K. Baker explains how anatomy, undergraduate research, faculty relationships, and ISSN shaped her path from exercise science to physical therapy.
GPNi® Career Insights | He Has Been at Every ISSN Conference
ISSN co-founder and past president Tim Ziegenfuss reflects on the field’s early scientific battles, 23 conferences, and the network that shaped his career.
GPNi® Career Insights | Students Are Not Outside the Profession. They Are Its Future.
Dr. K. Michelle Singleton discusses sports nutrition education, athlete recovery, student research, mentorship, and why young professionals should reach out sooner.
GPNi® Career Insights | One Career, Many Paths Through Sports Nutrition
Dr. Guillermo Escalante shows how sports medicine, nutrition, research, teaching, business, and professional leadership can form one career.
GPNi® Career Insights | She Didn't Wait for the Perfect Role. She Built Her Own.
Jackie Kaminski explains how a competitive UFC internship, real-world experience, and professional relationships helped her build The Fight Nutritionist.
GPNi® Career Insights | He Didn't Just Enter the Field. He Helped Build It.
ISSN co-founder Dr. Jose Antonio reflects on helping build sports nutrition as a profession, the value of face-to-face connection, and why career growth is an endurance test.
PNE Level-1 + ISSN-SNS or PNE Level-2 Masters + CISSN: Which Pathway Fits You?
Compare GPNi PNE Level-1 + ISSN-SNS and PNE Level-2 Masters + ISSN-CISSN pathways, including depth, application and career fit.
What 30 Years in Sports Nutrition Taught Me: Careers Are Built in Layers
GPNi founder Drew Campbell shares what three decades in sports nutrition taught him about building knowledge, credibility, connections and a lasting career.
Why Choose GPNi®? Build More Than a Certificate
Discover how GPNi® combines ISSN-backed education, PhD-level faculty, practical learning and a global network to build sports nutrition careers.
Creatine + Beta-Alanine: Does Combining Them Actually Improve Performance?
A new network meta-analysis compares creatine, beta-alanine, and their combination for sprinting, jumping, repeated-sprint ability, muscular endurance, and aerobic performance.
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