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Puking from working out to hard is from poor nutrition(6 posts)

Puking from working out to hard is from poor nutritionPODIUMBOUNDdotCA
May 30, 2002 11:28 AM
I'd like to hear your opinion on my theory that working out very hard makes you puke. In my opinion it DOES NOT. Puking from working out very hard is instead from improper nutrition which when the blood is sucked away from the stomach into the muscles makes you puke.

For example in the past I've eaten a footlong meatball sub and done a mountain bike race. On the second lap climbing the hill after it being relatively easy on the first lap I had to get off and started feeling like I'd puke. Then yesterday I did a 12 minute HIT workout running with a 4 minute warmup then 12 x 20 secs on and 10 secs off. My stomach was fine but I felt like I was going to pass out. By the way being a fitness instructor that was very bad and I should know that.

Nick Corcoran
More like timing...mtber
May 30, 2002 12:18 PM
I would guess that it is not nutrition per se (although the only time I ever puked when working out was after BK) but eating too close to working out hard. As you said the blood is sucked away from the stomach and a big wad of partially digested food is left just sitting there. This leaves you nauseus and makes some puke.
Exactly.... Nutrition = timing + right food :D (nm)PODIUMBOUNDdotCA
May 30, 2002 7:09 PM
So is the answer to have an empty stomach?Alex-in-Evanston
May 31, 2002 10:26 AM
I had to choke one back yesterday at the track. I thought I had planned my food intake wisely for a night race: big breakfast, medium lunch, smoothie two hours before race. Perhaps I should have skipped that smoothie. Without too much gory detail, I'm pretty sure that was what was still in my stomach.

There's more than one cause...BryanJL
May 31, 2002 2:33 PM
There are a variety of reasons that explain puking in relationship to working out.

1. Having food in the stomach and suddenly thrashing it around (just eating food, then immediately working out/exercising) may cause a bloated, nauseous feeling, and may end up in throwing up.

2. More commonly, and more directly related to the issue raised regarding high intensity training, lactic acid is commonly believed to produce nausea: the build up of lactic acid produces the nauseaous feeling.

3. It's possible that another byproduct associated with higher intensity training, chemicals produced during such efforts, causes the nausea when produced in sufficient quantities.

4. Hyponatremia (see for more)can cause vomiting.

That you didn't throw up during the HIT is more likely a testament to your high level of tolerance to lactic acid--you're in great shape. That you did throw up after eating kinda follows the "don't swim for 2 hours after you eat" saying--let the food get digested, so it stays down.

The explanation that blood being sucked away from the stomach and into the muscles is the cause of vomiting doesn't make sense to me and isn't in any of the literature I've found. The explanation hinges upon the stomach ejecting food whenever there's not much blood in the stomach--I think we'd see much more vomiting if this was the case.

For more info:,1300,1-53-84-1040,00.html

My thoughts,

I puke every race :-(Eric Marshall
May 31, 2002 6:19 PM
If I sprint at the end of any race I'll end up puking.
A minute after I finish the sprint I'll start coughing
and then after a minute of that I'll throw up some of
the liquid I consumed during the race. And then I'll
feel total fine after that. If I sprint *during* the race,
no puking. Fortunately, the only time I feel bad is
during the coughing and the (brief) puking. I'm still
experimenting with cures, but I've found none so far :-(