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"]
Stackwise compiles summaries from publicly available scientific and regulatory references. Always verify important decisions with a licensed clinician.
Related compounds
Others in the supplement category or studied for the same goals.