“Stigmasterol?”Here!

Plant

Hasn’t appeared in a scanned product yet.

As a supplement

Talk to your doctor or pharmacist.

Roll Call does not check drug interactions or assess personal safety.

A plant sterol structurally related to cholesterol, found naturally in soybeans and other plants.

Why it’s used

Taken by some for a possible role in supporting healthy cholesterol levels, similar to other plant sterols.

What the evidence says

Plant sterols as a class have some evidence for modestly lowering LDL cholesterol at gram-level intakes, but most of that research concerns sitosterol and campesterol rather than stigmasterol specifically. Dedicated human evidence for stigmasterol alone is thin.

Where we looked

There was no paper to cite here, so this is the search instead — run it yourself and see what we saw.

PubMed: 454 records · searched September 2026"Stigmasterol"[Title/Abstract] AND (review[pt] OR "safety assessment"[Title/Abstract] OR "risk assessment"[Title/Abstract] OR toxicology[Title/Abstract] OR toxicity[Title/Abstract] OR characterization[Title/Abstract] OR characterisation[Title/Abstract])
PubMed: 2 records · searched September 2026"Stigmasterol"[Title/Abstract] AND ("dietary supplements"[MeSH] OR supplementation[Title/Abstract] OR supplement[Title/Abstract] OR supplements[Title/Abstract] OR "oral administration"[Title/Abstract]) AND (randomized controlled trial[pt] OR clinical trial[pt] OR meta-analysis[pt] OR systematic review[pt]) AND humans[MeSH]
PubMed: 2995 records · searched September 2026"Stigmasterol"[Title/Abstract]

This says what this database holds under these terms. It is not a finding that no research exists.

Context

Where plant sterol blends have been studied for cholesterol effects, doses have generally been in the low grams per day range, but stigmasterol has rarely been isolated and tested on its own.

Rumors

1
Stigmasterol (the 'Wulzen anti-stiffness factor') reverses osteoarthritis and calcification.
Not gradedhealth and safety evidence
Sources cited — no verdict reached.
What was measured is not yet noted.
- Stigmasterol blocks cartilage degradation in rabbit model of osteoarthritis (Peer-reviewed) · Funding not checked
- Stigmasterol: a phytosterol with potential anti-osteoarthritic properties (Peer-reviewed) · Funding not checked
- Health Benefits and Pharmacological Properties of Stigmasterol (Peer-reviewed) · Funding not clearly stated · No conflicts declared
Who’s saying this
- Goodreads — a platform — posts are by its users: book reviews and recommendations site; Goodreads LLC is a subsidiary of Amazon.com, Inc.
  How we know who this is
  “Goodreads is the world’s largest site for readers and book recommendations.” (their page)
  “Goodreads LLC is a subsidiary of Amazon.com, Inc. (“Amazon”).” (their page)
2
Stigmasterol is a powerful anti-aging nutrient that helps you feel better, look younger and be fitter.
We haven’t found evidence strong enough to support this or rule it out.
What was measured is not yet noted.
Who’s saying this
- Goodreads — a platform — posts are by its users: book reviews and recommendations site; Goodreads LLC is a subsidiary of Amazon.com, Inc.
  How we know who this is
  “Goodreads is the world’s largest site for readers and book recommendations.” (their page)
  “Goodreads LLC is a subsidiary of Amazon.com, Inc. (“Amazon”).” (their page)
3
Taking stigmasterol can reduce your need for painkillers (NSAIDs, COX-2 inhibitors) and statins.
We haven’t found evidence strong enough to support this or rule it out.
What was measured is not yet noted.
Who’s saying this
- Goodreads — a platform — posts are by its users: book reviews and recommendations site; Goodreads LLC is a subsidiary of Amazon.com, Inc.
  How we know who this is
  “Goodreads is the world’s largest site for readers and book recommendations.” (their page)
  “Goodreads LLC is a subsidiary of Amazon.com, Inc. (“Amazon”).” (their page)
4
Stigmasterol lowers LDL (bad) cholesterol without affecting HDL cholesterol.
Not gradedhealth and safety evidence
Sources cited — no verdict reached.
What was measured is not yet noted.
- Comparative effects of dietary stigmasterol and oxidised stigmasterol on cholesterol absorption and metabolism in mice (Peer-reviewed) · Funding not checked
Who’s saying this
- foodstruct.com — we couldn’t open the site to see who runs it
5
Stigmasterol is a potent antioxidant and anti-inflammatory.
Supports — suggestivehealth and safety evidence
Measured as a biomarker.
- Health Benefits and Pharmacological Properties of Stigmasterol (Peer-reviewed) · Funding not clearly stated · No conflicts declared
- Stigmasterol: a phytosterol with potential anti-osteoarthritic properties (Peer-reviewed) · Funding not checked
Who’s saying this
- foodstruct.com — we couldn’t open the site to see who runs it