Preventing GI Distress During Long Events

GI distress usually comes from a mismatch: intake rate too high, concentration too strong, timing too irregular, or products not tested under race-like stress.

The fix is progressive gut training. Increase carb intake gradually in key sessions, match fluid to environment, and rehearse exactly what you plan to consume in competition.

"If your gut cannot process the plan, the plan is wrong."

— Prep Product Lab

Reduce GI risk in training

• Use long sessions to practice race fueling at target intake rates.
• Avoid introducing new products in the final race-week window.
• Adjust concentration when heat and fluid demand increase.
• Track GI feedback and refine products, timing, and doses iteratively.

Prep turns your successful training reps into a repeatable race-day script, so execution feels familiar even under pressure.