Bloating after exercise

by 195 · June 14, 2013 at 11:12 PM

Hi everyone...I wanted to know if any of you have experienced bloating immediately after exercise?

My husband has noticed that every time I get home from Crossfit, running, or any other exercise, that my stomach gets really bloated, then subsides after a few hours. Sometimes though, it stays bloated the rest of the day.

I have heard it might be the muscles retaining water, but mine is strictly in the gut area. I do sweat a ton when I work out, not sure if that makes any difference. i read somewhere it could be caused by the release of toxins, but that is not a documented fact.

Any thoughts?

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11 Replies

3608 · June 20, 2012 at 11:54 PM

I would say it's cortisol. Cortisol levels rise and then fall an hour or two after exercise. I've experienced the same thing. Hour or two of sitting around, and it goes away after.

10 · January 06, 2012 at 01:10 AM

During heavy exercise, digestion can be put on hold temporarily. Blood that was being used for digestion can be diverted to the muscles to supply more oxygen which is more immediately useful to power your muscles than the contents of your digestive track.

If you are heavily stressing your body during these workouts, the cortisol that is released to rebuild your body can induce a prolonged state of inflamation.

Tell-tale signs would be that your next pass is not fully digested or your blood pressure remains high for several hours after working out. That is probably an indication that you are over training, which can be extremely easy to do with standard crossfit.

I'm definitely no expert. But I hope this was helpful.

8185 · January 05, 2012 at 06:31 PM

Are you taking whey or anything else pre/post workout? I've heard of it with whey. But it's a bit weird if you're not taking anything at all.

11664 · December 24, 2011 at 07:37 PM

Are you drinking from a water bottle? I find it impossible to drink from one (esp a narrow-mouthed one) without swallowing air, which could be the source of the bloat.

2782 · December 24, 2011 at 04:11 PM

Strange, I find the opposite to be true; I'll often go for a run if I'm feeling bloated, and the bobbing movement tends to force the trapped gas to...erm...move on through.

Could it be related to what you're eating or drinking post-exercise? Sometimes if I reward myself with a carbonated drink after a run I'll immediately suffer the consequences.

0 · June 14, 2013 at 11:12 PM

I personally suspect what Ron mentioned for my experience with post-workout abdominal swelling. I've suffered from asthma my whole life and think that may be related.

0 · February 08, 2013 at 10:11 PM

Hi, I have the same thing I workout every morning 4 days rows and don't work out 3 days rows.. my stomach bloating really bad. I drank a lot of water and eat health veggies.. Still wonder why I am still bloating for 1 weeks and sore AB area after running and sit up.. Still bloating..

0 · August 14, 2012 at 10:25 PM

Hi there,

I have the same experience. It looks many things, more than ten, could cause my bloating, such as exercise, hungry, overload of food, dairy, nervous, upset, angry, and so on. I suffer whole life asthma, but I always think the asthma is not noly caused by lower lung function, it is caused by the bloating after exercise. Maybe too much CO2 could not release from my lung instead it goes to my intestine after exercise.


215 · December 26, 2011 at 05:27 PM

I occasionally get the same thing - distention in the gut area, but no gas. I haven't figured it out either, but since cutting fruit out of my diet and upping fat intake I must say it occurs less frequently. Just another one of those trial and error things to figure out the cause.

566 · December 26, 2011 at 12:30 AM

I'd look at your daily context before you exercise. Do you sit much during the day or typically after you eat? It could just be the moment you exercise your body metabolism is getting fired up and stomach is emptying from whatever food you've eaten that day. All that moving loosens stuff up.

2528 · December 24, 2011 at 09:09 PM

Could be a cortisol issue... I got this same reaction from fasting too much and exercising during the fast.

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