quantitative
Analysis v1
Most of the stuff your gut bacteria eat turns into helpful chemicals like butyrate, and your body soaks up almost all of it—very little ends up in poop.
Evidence from Studies
Supporting (1)
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Community contributions welcome
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Quantifying the varying harvest of fermentation products from the human gut microbiota
Computational/Algorithm Study
In Vitro
2025 Sep 18The study shows that when gut bacteria break down fiber from food, most of what they produce is absorbed by your body, just like the claim says.
Contradicting (0)
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No contradicting evidence found
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.