How does drinking water help fiber pass through your system?

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How does drinking water help fiber pass through your system?

In: Biology

Generally speaking, fibre in your bowel attracts water, like a sponge. You can imagine that if you don’t have much water around, the sponge is still partly dry and sticky, which makes it harder to push through the gut. If you are well hydrated enough that there is plenty of water for the sponge to draw out from your gut capillaries, you will have a nice, soft, wet sponge to push out instead.