Question: Can I Get Cramps from Drinking While Running?
Whenever I drink water before or during my runs, I get cramps on my side. Is it OK to not drink while running so I can avoid cramps?
Answer: The idea that you'll get cramps from drinking water while running is a myth. Drinking water, whether it's warm or
cold, before or during running should not cause side stitches. The best ways to
prevent side stitches while running is to make sure you
warm-up properly and to
breathe deeply through your mouth.
If you avoid drinking during runs because you're worried about cramps, you could end up with much bigger problems, such as dehydration or heat stroke. A general rule of thumb is that you should be drinking 6 to 8 ounces of fluid every 20 minutes during your runs.
More: Proper Hydration for Running