Science Spotlight
Not Everything in Women’s Training Comes Down to the Menstrual Cycle
Does the menstrual cycle dictate women’s training? Explore the evidence on cycle syncing, strength, nutrition, energy availability and performance.
Beyond the Scoreline: How Heat, Altitude, Travel, and Air Quality Shape World Cup Performance
Heat, altitude, travel, air quality, and hydration can all shape football performance. This GPNi article reviews recent Sports Medicine papers on the environmental challenges facing World Cup players.
Low-Carb Diets and Endurance Performance: The Debate Is Not Over — But the Question Is Getting Better
Does a low-carbohydrate diet improve or impair endurance performance? This article reviews the latest AJCN debate and explains why fueling strategy depends on intensity, duration, and athlete goals.
From Antioxidant Defense to Performance: Is the Evidence for Quercetin Strong Enough?
Quercetin may support antioxidant defense and exercise recovery, but does it improve performance? This evidence-based review explores the current research, limitations, and practical implications for athletes.
From Esports to Sports Nutrition: Are Nootropics the Next Big Trend in Performance Nutrition?
Nootropics are emerging in sports nutrition, esports, tactical performance, and brain health. Learn how cognitive nutrition may support focus, decision-making, and mental performance.
The 4Ps of Competition Nutrition: A GPNi Perspective on Building Performance Before the Start Line
Performance does not start at the whistle. Learn how the 4Ps framework helps athletes plan nutrition before and during competition for better fueling, hydration, and execution.
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.
High Protein Doesn’t Have to Mean “All Meat”: Pistachios, Plant Protein, and Athletic Performance
From an ISSN 2025 session: how pistachios compare on protein quality (PDCAAS), how plant-based diets affect performance, and practical ways to hit leucine targets.
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