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Water-Cookies OP t1_je5azn6 wrote

Reply to comment by EkbyBjarnum in ELI5: How does your stomach "know" when to pass food on if more food keeps entering during initial digestion? by Water-Cookies

Fit a square peg into a round hole. Interesting, I wonder if the stomach just only allows the chyme to pass, and everything else just keeps mixing until it's broken into chyme

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Birdie121 t1_je66xd6 wrote

Not always. Insoluble fiber won’t break down, and it’s common for whole seeds and fruit skins and other tougher materials to remain whole all the way to your poop.

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Prunus-cerasus t1_je5loom wrote

Nope. Some hard to digest foods can pass all the way through intact. Of course they have to be of a size that can fit in your intestines. Some berries come to mind as an example.

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