The scienceof fuel.
Research, training notes, and the thinking behind every IV-X formula. Fuel as performance infrastructure — explained.
Why ENERGY Moved From 200mg to 150mg Caffeine
Why ENERGY Moved From 200mg to 150mg Caffeine ENERGY.150 was reformulated from 200mg caffeine to 150mg ca...
Cold Conditions and the Cost of Under fueling
This article outlines how cold environments alter metabolic demand, hydration dynamics, and muscular effici...
Built for Purpose
IV-X™ came to life publicly in 2025, a launch that somehow feels both impossibly recent and already part of...
Fuel Psychology: Approach Behavior and Avoidance Under Fatigue
Why most sports drinks taste great at rest but become intolerable under fatigue.
Sodium as a Thermoregulation Mechanism
A breakdown of why sodium is the critical driver of thermoregulation, sweat continuity, and late-race resil...
Gut Adaptation and Fuel Compliance in Prolonged Efforts
A research driven look at how the gut adapts to high carbohydrate intake, why fueling fails when tolerance ...