How Long Poop Stays in Your Body May Impact Your Health, Study Finds

(sciencealert.com)

75 points | by mikhael 4 hours ago ago

50 comments

  • flossly 3 hours ago ago

    I did quite some experimenting with this.

    Fruit moves fastest and green leaves. Meat, cheese, oil and fats slowest.

    But we often eat combinations: and the slowest component of your food determines the speed of the whole.

    Also: it's a one lane road and "over taking" is not possible.

    So, eating a fast moving meal after a slow moving meal results in the fast mover getting stuck behind the slow mover.

    Hence I start my day without and slow food (only fruit, herbs, green leaves, spices, ginger => usually a smoothy); and end the day with slow food (oily food, nuts, seeds, beans; usually combined with green leaves as we need a lot green leaves).

    YMMV

    • mrroryflint 3 hours ago ago

      There have been alternative (often mad) health proponents who have insisted upon only eating fruit in the morning for years - similar(ish) reasons. I think there is probably something to it.

      • konradb 3 hours ago ago

        I remember this being a thing in some Tony Robbins book!

      • sublinear 41 minutes ago ago

        Whole fruit also has a lower glycemic index due to the fiber. This slow release of sugar helps reduce insulin resistance and balance out hormone response in general.

        Hormonal imbalance is severely underrated as a root cause of common mental health issues like anxiety, depression, etc.

        Having fruit in the morning is a little boost without the guilt. Adding in some light exercise, like walking, also helps prime the day. It even gets easier to wake up early for all this the more regularly it's done. It's one big reinforcement cycle for healthy habits.

      • oulipo2 3 hours ago ago

        I mean the most obvious reason is fibers

    • gchamonlive an hour ago ago

      Isn't slow food going through your body during sleep something that'll impact your sleep quality?

      When you wake up you are basically fasting so your body is ready to take a hit. Slow food will go through your body faster when you eat it in the first half of your day.

    • boring-human 2 hours ago ago

      I don't disagree with your findings, but here's the model I use:

      - Fiber: ^

      - Dairy: v

      - Coffee: ^^

      - NSAIDs: vv

      - Ice cream splurges: vvv

      • arethuza 2 hours ago ago

        My breakfast routine for ~40 years has been coffee, muesli, coffee, yoghurt, coffee, fresh fruit all served with plenty coffee.

    • x______________ 3 hours ago ago

      Interesting.

      A great opportunity to add "YMMV"

      • Ballas 2 hours ago ago

        Your Movements May Vary?

      • anonu an hour ago ago

        YBMMV

      • flossly 3 hours ago ago

        Did it!

    • CTDOCodebases 2 hours ago ago

      Eating bitter greens can cause the body to secrete more bile and that speeds up fat digestion.

    • andsoitis 3 hours ago ago

      Have you found that coffee speed things up?

      • sublinear 38 minutes ago ago

        I have, but I think any stimulant would do similar. I no longer smoke, but that did it too.

    • lordgrenville 3 hours ago ago

      n=1

      But interesting nonetheless, thanks for sharing your findings.

      • flossly 3 hours ago ago

        I have a small following of people how also saw improvements doing this.

        Then, I did not come up with this myself, but found a lot of anecdotals in this direction.

        And... I comment on a real science piece that seems to be making similar claims.

    • paul7986 2 hours ago ago

      For me i drink close to a gallon of water a day and that truly cleans me out daily.

    • calf 2 hours ago ago

      Just to be clear I thought the typical advice has been fiber -> protein -> carbs, for blood sugar reasons, you're saying to frontload fiber/carbs & backload proteins for easier digestion? That is interesting, I wonder what studies there are on this.

    • vogelke an hour ago ago

      > It's a one lane road and "over taking" is not possible.

      Best poop-related comment I've seen.

    • altmanaltman 3 hours ago ago

      What do you mean, the human stomach is absolutely not a "one line road", your comments lacks the basic biological understanding. What you're describing is a good generic diet and maybe that's why it feels good but please learn a bit more about the stuff you are expetimenting on.

      • flossly 3 hours ago ago

        I did not mention stomach. I meant the GI-tract as a whole.

        I've used food coloring and indigestibles (like corn kernels) to do experiments on whether meals can "overtake" or "merge" or "join" with other meals into poops.

        • jahller 2 hours ago ago

          that's the most insane thing i read today. kudos to your curiosity

        • altmanaltman 13 minutes ago ago

          Food coloring is a liquid dye. It will mix with whatever chyme it encounters in the stomach and small intestine, dyeing a large portion of the stool. It does not prove that food stayed in a single-file line.

          Also, again the GI-tract as a whole is also not a "one-lane road".

          Please educate yourself and do not do "experiments" on yourself. A good place to start learning more would be: https://accessmedicine.mhmedical.com/book.aspx?bookid=691 if you're intrested.

    • SideburnsOfDoom 2 hours ago ago

      I will add an anecdote that from observation, two people on the same diet over long periods can have significantly different poop frequencies, and differing regularity.

      YMMV. It's not just determined by the food intakes, there are individual factors.

      At a guess, these individual factors start with 1) genetic component to reactions to substances such as lactose and to caffeine. 2) Gut microbiome.

      In other words, saying "change diet and you can change the poop schedule" is true, but "with this diet you will definitely get this schedule" is not.

    • alpineman an hour ago ago

      Or just don't eat meat and cheese at all

      • mcv 24 minutes ago ago

        Better for the environment too.

        • flyinglizard 14 minutes ago ago

          The best thing for the environment is dying. You stop wasting resources and start fertilizing the soil.

  • Qem 3 minutes ago ago

    I wonder if this explains in part the purported health benefits from cofee. One thing people often say makes hard to quit cofee habit it's that they can't take a shit in the morning anymore.

  • dustractor 16 minutes ago ago

    This is why I suspect that GLP-1 agonist medications have the potential to cause a cascade of negative consequences for the health of some people. One of the mechanisms is slowed gastric emptying which leads to decreased motility of the small intestine as a side effect. They do tell people to drink more water to counteract this. It just seems like trading one set of problems for another so hopefully doctor and patient will carefully weigh the benefits versus the risks. We shall see.

  • iszomer 36 minutes ago ago

    Consumption of dairy and products are a relatively fast and painful solution for personal system purges within 30m but entirely depends on how processed they are.

    • DaedalusII 27 minutes ago ago

      you may evaluate the concept of a milk enema, dramatic and rapid defecation ensues in comparison to a saline enema

  • fibermaxxx an hour ago ago

    More fiber, more plants. I know individuals that eat "only vegetable on the burger" Oats, grits, or smoothie for early day Mine:Fruit smoothie with oats Starches, leafy greens, for midday Mine:roasted sweet potato on a salad Legumes and tree nuts for dinna Mine:Chickpea sauce over roasted veggies with pasta, or cashews.

    The goal is more than 13 plants a day and your movement will be very consistent

  • phyzix5761 26 minutes ago ago

    I wonder how Ozempic affects this because it slows down gastric emptying.

  • sph 3 hours ago ago

    I guess with my IBS I should be the healthiest person around.

  • cess11 3 hours ago ago

    https://gut.bmj.com/content/72/1/180

    The study. It basically says that this is something one perhaps should consider in clinical settings and that the speed of fecal matter might be a worthwhile direction for future inquiry.

    "Altogether, a better understanding of the complex, bidirectional interactions between the gut microbiota and transit time is required to better understand gut microbiome variations in health and disease."

    It does not say 'this is a sign of health and that is not'.

  • jonatron 3 hours ago ago

    I'm surprised there's no mention of hot drinks in the morning.

  • bregma 19 minutes ago ago

    I find I can't keep it down for more than a few minutes. I guess I can eat all the poop I want and stay healthy then?

  • Grp1 23 minutes ago ago

    this post needs an enema

  • devolving-dev 4 hours ago ago

    I wonder what this means for GLP 1 drugs that slow digestion.

    • andreareina an hour ago ago

      Actual outcome data shows that they're a net benefit, and it's not even close.

  • hhh 3 hours ago ago

    And if I flip flop between both?

    • nacozarina 10 minutes ago ago

      stress-induced

      nobody dumps during their first two days of boot camp

  • beardyw 3 hours ago ago

    If the writer ingested a lot, very little came out.

  • pawelduda an hour ago ago

    Sooo.... Another reason to drink coffee/yerba mate? Although the latter also supposedly stimulates release of GLP1, which slows down "the release"

  • feverzsj 2 hours ago ago

    Eat lots of fibers and water, and you'll poop like a cow.

  • sans_souse 3 hours ago ago

    No shit

    • delis-thumbs-7e 3 hours ago ago

      In that case you really should go and see a doctor ASAP.