supplement

Psyllium Husk

Evidence: High · 90%
Half-life
24 h
Typical timing
with_meal
Food rule
with food
Default unit
g

Studied for

Overview

Psyllium husk is a form of soluble fiber derived from the seeds of the *Plantago ovata* plant, also known as blond psyllium. It is commonly used as a dietary supplement due to its high fiber content. When psyllium husk comes into contact with water, it forms a gel-like substance that can aid in various digestive processes. It is available in several forms, including powder, capsules, and wafers. The U.S. Food and Drug Administration (FDA) has recognized psyllium as a therapeutic agent for cholesterol lowering when consumed as part of a low-fat diet. It is also a common ingredient in over-the-counter laxatives. Its traditional use spans various cultures for digestive health. (NIH ODS, FDA label)

Deep dive

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Known interactions

  • Category rule: glp1 × supplement
    Note

    GLP-1 medications slow stomach emptying, changing how/when oral supplements absorb; rapid weight loss raises the importance of protein and micronutrients.

    Time oral supplements when nausea is lowest; prioritize protein and micronutrients; discuss with your provider.

  • Category rule: supplement × medication
    Note

    Some supplements change how the body processes medications (absorption, liver enzymes, or additive effects).

    Specific pairs are checked against a licensed drug database and shown with their own severity. Always confirm with your provider or pharmacist.

Frequently asked

Sources referenced

["Cochrane","DrugBank","Examine.com","FDA label","Mayo Clinic","MedlinePlus","NIH ODS (Office of Dietary Supplements)","PubChem"]

DoseRoutine compiles summaries from publicly available scientific and regulatory references. Always verify important decisions with a licensed clinician.

Cite this page

Using this in an article, AI answer, or research note? Please attribute:

DoseRoutine. (2026). Psyllium Husk — Overview, Benefits & Side Effects. Retrieved from https://doseroutine.com/library/psyllium-husk
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