25/02/2026
Everyone should know their bowel transit time — and this is a super simple way to test it yourself home.
Bowel transit time refers to how long it takes your food to move through your gut and pass out the other end as 💩
This little test is an easy way to get a good estimate.
Take 1 tablespoon of sesame seeds, add them to water and drink it down. Try not to chew them too much as we want them to stay intact so we can see them when they come out the other end! Fun!
Can have sesame seeds? You can do this test with corn on the cob as well- again just don’t excessively chew it up.
Interestingly, you can poo daily but still have a slow bowel transit time. If your bowel transit time is slow, that is a form of constipation — even if you’re going daily.
Why does bowel transit time matter?
Slow bowel transit time matters because stool sitting in the colon too long isn’t neutral — it changes the microbial environment, increases endotoxin exposure, alters immune signalling and can contribute to estrogen recirculation.
I hope I’ve convinced you to try this simple test!