When to use this
The week a runner's stomach starts dictating workouts — use it to start the pattern log before anyone blames a single food.
- A runner ducking out of hard sessions with urgency, nausea, or cramping.
- Race mornings that keep going wrong even though practice fueling seems fine.
- An athlete starting to skip pre-run food entirely to avoid stomach trouble.
Evidence sources
These references support the handout’s general education. Individual medical, supplement, laboratory, or injury questions should be handled by the appropriate qualified clinician.
- de Oliveira EP, Burini RC. Food-dependent, exercise-induced gastrointestinal distress. J Int Soc Sports Nutr. 2014.
- Costa RJS, Snipe RMJ, Kitic CM, Gibson PR. Systematic review: exercise-induced gastrointestinal syndrome. Aliment Pharmacol Ther. 2017.
Where to go next
