Soluble Fiber: what it does, by goal, and the dose that worked

What the 89 human studies of soluble fiber we graded show for each goal, the dose that worked, and the products that hold it. This page is educational, not medical advice.

Human studies graded
89
Goals with an improvement
3
Products
7
Ranked
6
Biohacker opinions
0/10
What it does, by goalMembersThe top 3 of 3 goals
GoalWhat the studies showStudiesDose that worked
Improved in studies 45 studies, 22 showed an improvement, 11 found none, 9 pooled analyses456 g
Improved in studies 30 studies, 11 showed an improvement, 3 found none, 2 pooled analyses308 g
Improved in studies 21 studies, 6 showed an improvement, 5 found none, 4 pooled analyses218 g

Members see which goal each result is for, and the products for it. Start My 7-Day Free Trial →

Products – highest ranked firstMembersThe top 3 of 7
Dose and safetyThe dose that worked and the upper limit

The studies taken by mouth that showed an improvement gave 6 to 34 g a day.

Biohacker panelMembersWhat our 10 biohackers say about soluble fiber
Questions people askMembersAnswered from the figures on this page

What is soluble fiber good for?

Answer for members.

How much soluble fiber a day?

Answer for members.

Can I take soluble fiber with my meds?

Answer for members.

Members see the answers, checked against their own meds and goals. Start My 7-Day Free Trial →

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 →