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Upset stomach?

tongue_tied2010-12-12 22:45:07 +0000 #1
I'm starting to adopt more running into my weekly duties. Whereas it was cyling 6 days a week, it's now running 2 or 3 days a week on top of riding the other days, with varying distances of 3-5 or 6 miles. I'm a 5 small meals a day eater, and generally on my way home from work, I'll have an apple and some water because I go right out and either ride or run when I get home. I've noticed that lately, I've gotten stomach aches. I'm well aware that this isn't something out of the ordinary, but what causes it? And how can I stop it? My legs have more miles in them but my stomach doesn't and it's bumming me out.
OakLeaf2010-12-12 22:52:26 +0000 #2
My whole digestive system is much more sensitive running than it is on the bike. It's been a matter of trial and error, figuring out what I can tolerate (fruit is right out, for one thing - as is anything with much fructose in it at all). Unfortunately, you're probably just going to have to experiment and learn what works for you.

Also make sure that you're getting enough sodium. Electrolyte imbalances are a big cause of nausea and diarrhea.
GLC19682010-12-12 22:50:58 +0000 #3
I have a similiar problem. I used to love yogurt with homemade granola as my afternoon snack, but now I know I can't eat that on run days (I run after work). It actually gives me horrible heartburn, of all things.

Lately, I've been happy with an apple and 1-2 oz of low fat cheddar. Just a plain apple would probably leave me with stomach distress, too. For whatever reason, the addition of the cheddar keeps things on an even keel (protien? fat? who knows...)

I agree with Oak - the best way to figure it out is to experiment.
tongue_tied2010-12-12 23:21:17 +0000 #4
The apple and cheese balance does make sense. I read somewhere that sometimes dairy causes it, alone. I also read dehydration causes it, your breathing, etc...

Maybe I'm just not lucky enough to have a strong stomach when running.
colby2010-12-12 23:27:00 +0000 #5
As you run more, your body may adapt to having food in your tummy, too. After running a lot, I can eat different foods before running than I can when I spend weeks not running at all, and closer to the time when I start running. So, don't despair too much that it's a permanent or difficult affliction.

It may be the amount of time between when you eat and when you run, it might be the high fiber/sugar foods. Maybe switch to a banana instead of an apple, or try adding the protein (I usually try to pair a little protein with carbs in a snack anyway).

Running is definitely harder on the tummy than riding - though if I go out and do hard intervals, hills, or sustained higher intensity in any way on the bike, it feels a lot more like running than a nice smooth commute or afternoon ride.



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