Insoluble Fiber: what it does, by goal, and the dose that worked
What the 39 human studies of insoluble fiber we graded show for each goal, the dose that worked, and the products that hold it. This page is educational, not medical advice.
What it does, by goalMembersThe top 3 of 3 goals
| Goal | What the studies show | Studies | Dose that worked |
|---|---|---|---|
| Improved in studies 21 studies, 6 showed an improvement, 6 found none, 1 pooled analysis | 21 | 1.8 g | |
| Improved in studies 14 studies, 1 showed an improvement, 1 found none | 14 | – | |
| No effect in studies 7 studies, 3 found none, 1 pooled analysis | 7 | – |
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Products – highest ranked firstMembersNone in our catalog yet
No product in our catalog holds it at a dose that counts yet.
Dose and safetyThe dose that worked and the upper limit
The studies taken by mouth that showed an improvement gave 1.8 to 26 g a day.
Biohacker panelMembersWhat our 10 biohackers say about insoluble fiber
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Questions people askMembersAnswered from the figures on this page
What is insoluble fiber good for?
Answer for members.
How much insoluble fiber a day?
Answer for members.
Can I take insoluble fiber with my meds?
Answer for members.
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Educational, not medical advice. Figures come from the human studies on PubMed we have graded; a study counts for a form when it names the form it used. Updated as new studies arrive. How we grade →