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From Fellrnr.com, Running tips
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* Try limiting high fiber foods the 24 hours before a long run.
** Alternatively, more fiber may actually help. More fiber may help the GI tract to empty in a timely fashion (i.e. before the run). For instance, taking some fiber the night before could help the GI tract empty the next morning before the run.
* Stimulants such as [[Caffeine ]] and Chocolate ([http://en.wikipedia.org/wiki/Theobromine Theobromine]) can stimulate or irritate the GI tract. Taken before the run they may help to empty the GI tract, but on a run they may cause problems.
* Avoid using NSAID drugs such as Acetaminophen (Paracetamol) or Ibuprofen as these can irritate the GI tract, especially in higher doses. See [[NSAIDs and Running]] for more details.
* Clothing or fuel belts that are tight around the stomach could aggravate the problem.
