You enter
- Symptom, timing, frequency, duration, and impact
- Food/fluid timing, medication, heat, pace, and practice history
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Organize the actual symptom, timing, frequency, and context into a review priority or one-variable practice trial.
Use it when
Use after a gut problem in training or racing, especially when it repeats or changes normal function.
Actual workflow
You enter
You receive
Example experiment
Observation: nausea begins 35–45 minutes into hard runs and has happened three times
Trial: keep pace, route, and breakfast stable; change only the selected pre-run timing
Record onset, severity, and whether function changes.
Recognizable examples
These package photos help athletes and parents recognize the category in a store. Brands are examples, not endorsements; check the current label for ingredients and allergens.

Applesauce pouch
Portable applesauce pouch for a quick, low-mess carbohydrate option.
Official product page
Plain bagel
Recognizable bagel option for breakfast or a practiced pre-event meal.
Official product page
Carbohydrate-electrolyte sports drink
Sports-drink example for longer, hotter, or high-sweat sessions.
Official product pageEducational use only. The unlocked tool shows its inputs, assumptions, formulas, substitutions, and result ranges where calculations apply. Results do not diagnose or treat a condition and should be interpreted with the athlete's actual training, food access, tolerance, medical history, and qualified care when needed.