PubMed-compiled information sheet
This sheet was compiled from PubMed (NIH) abstracts using AI assistance. Every factual claim is cited to a real PubMed article (see the source list). It has not yet been human-reviewed — confirm with a healthcare provider before use.
Compiled from 3 PubMed articles · model: gemma4:31b
Summary
Xanthorrhiza simplicissima, commonly known as yellowroot, is a deciduous shrub native to the eastern hardwood forests of the United States containing bioactive compounds including berberine [PMID:27671811, PMID:40857125].
Background
Xanthorhiza simplicissima (yellowroot) is a deciduous shrub that typically reaches one to three feet in height and thrives in wet, shady settings within the eastern hardwood forests of the United States [PMID:40857125].
Traditional uses
The roots have been used extensively in Native American medicine, specifically by the Cherokee people, as a tonic and for the treatment of jaundice, cramps, and ulcers [PMID:40857125].
Active compounds
Yellowroot extracts contain alkaloids (specifically berberine), triterpenes, phenolics, flavonoids, and sterols [PMID:27671811, PMID:40857125].
Mechanism of action
Berberine, a compound found in Xanthorhiza simplicissima, exerts significant antioxidant and anti-inflammatory activities in vitro [PMID:27671811].
Clinical evidence
Evidence BLipid levels and insulin resistance
Berberine (found in yellowroot) has demonstrated lipid-lowering and insulin-resistance improving actions in numerous randomized clinical trials [PMID:27671811].
Evidence BEndothelial inflammation
Preliminary clinical evidence suggests berberine can reduce endothelial inflammation to improve vascular health, including in patients with cardiovascular disease [PMID:27671811].
Evidence summary
Evidence for the herb itself is primarily based on reviews of its phytochemistry and traditional use; however, there is strong clinical evidence (RCTs) for the efficacy of its constituent compound, berberine, regarding metabolic and vascular health.
PubMed sources
- 1.PMID: 27671811 (2016) — Berberine and Its Role in Chronic Disease. · Advances in experimental medicine and biology
- 2.PMID: 40857125 (2025) — A mini review on marshal (yellowroot): phytochemistry and ethnobotanical significance. · Natural product research