Rule-Based Precision
Deterministic calculations based on proven sports science. Every recommendation is transparent and explainable.
⚡ No AI. No guesswork. Pure science.
Fuel Your Training With Precision
Get transparent, rule-based fueling plans for every endurance session. Concrete targets. Clear rationale. No black boxes.
Cycling
Running
Swimming
Why Fueling Optimizer?
Built for ambitious endurance athletes who want to know exactly why they are eating what they are eating.
Constraint-Aware
Respects your GI sensitivity, gut training level, and personal carb limits with clear risk flags.
3-Phase Focus
Before, during, and 0-2h after session. Focused MVP scope for a single training session.
How It Works
Three steps. Zero guesswork. Full transparency.
Enter Session Details
Weight, duration, intensity, sport type, and your personal constraints.
Get Your Plan
Concrete targets in grams, milliliters, and milligrams.
Execute With Confidence
Follow specific food/fluid recommendations with clear rationale.
What You Get
Concrete targets in g, ml, mg per phase
Specific food and drink recommendations
Short rationale explaining each decision
Risk flags when limits are applied
Sport-specific adjustments (bike, run, swim)
GI sensitivity and gut training awareness
Competition vs training mode
Mobile-friendly results