Performance Sweat Testing
Individualized Fluid & Electrolyte RecommendationsEvery athlete sweats differently. Some lose more fluid, while others lose significantly more sodium. Sweat testing turns those differences into actionable data you can apply immediately to training and competition.
Schedule Your TestTake the guesswork out of hydration.
Every athlete sweats differently. Some athletes lose more fluid, while others lose significantly more sodium. These differences can impact performance, recovery, and fueling strategies.
At Fuel NC, we use the Gatorade Sports Science Institute (GSSI) Sweat Testing System to measure your individual sweat rate and sweat sodium concentration. Based on your results, we provide personalized fluid and electrolyte recommendations tailored to your needs.
Whether you are preparing for competition, training in the North Carolina heat, or looking to optimize your performance, sweat testing provides actionable data that can be immediately applied to training and competition.
Sweat sodium analysis performed in-office by a Registered Dietitian
testing session
sweat rate & sodium
results report
Two numbers that change how you fuel.
Your sweat test captures the two variables that drive individualized hydration strategy — how much fluid you lose, and how much sodium goes with it.
Sweat Rate
We calculate your sweat rate by measuring changes in body weight and tracking fluid intake throughout the exercise session — telling us exactly how much fluid you lose per hour of exercise.
Sweat Sodium Concentration
Using a sweat collection patch and the Horiba LAQUAtwin Na-11 Sodium Ion Meter, we analyze the sodium concentration of your sweat to determine individualized electrolyte replacement needs.
The Horiba LAQUAtwin Na-11
A precision sodium ion meter used in sports science labs worldwide. It analyzes the sodium concentration of your sweat sample in parts per million — the foundation of your personalized electrolyte plan.
Trained through the Gatorade Sports Science Institute.
Your test is performed by a Registered Dietitian trained through the GSSI at the IMG Academy Satellite Research and Testing Laboratory — the same sweat testing system trusted by professional and elite athletes.
Gatorade Sports Science Institute — IMG Academy Satellite Research and Testing Laboratory
One session. A complete hydration strategy.
Your investment covers the full testing session, analysis, and a personalized review of your results with a Registered Dietitian on our team.
60-minute in-person session with same-day results.
- 60-minute in-person sweat testing session performed by a Registered Dietitian trained through the GSSI at the IMG Academy Satellite Research and Testing Laboratory
- Sweat rate assessment
- Sweat sodium concentration analysis
- Individualized fluid and electrolyte recommendations
- Same-day results report
- Personalized results reviewed with you by a Registered Dietitian on our team
Built for athletes who want answers, not estimates.
If you train hard, compete in the heat, or have ever wondered whether you're replacing what you actually lose — sweat testing was built for you.
Ready to schedule your sweat test?
Take the guesswork out of hydration and electrolyte replacement with individualized sweat testing.
Schedule Your TestEmail: info@fuelnc.com · Phone: 919-819-4052