Natural Compound

Solomon's Seal

Polygonatum (multiple species: P. biflorum, P. multiflorum, P. odoratum)

Evidence TierDWADA NOT PROHIBITED

tuneTypical Dose

500-1000 mg dried rhizome extract

watchEffect Window

2-6 weeks for subjective joint support.

check_circleCompliance

WADA NOT PROHIBITED

Overview

Clinical Summary

Solomon’s seal (Polygonatum species) is a traditional herb used for musculoskeletal and connective tissue complaints. Modern human clinical validation is lacking.

Human intervention evidence is lacking, and the current rationale is based mainly on traditional use plus preclinical anti-inflammatory and polysaccharide research. Species identification and product variability further limit confidence, so this entry should stay descriptive rather than efficacy-forward until direct clinical trials exist.

Rich in mucilage and allantoin. Traditional demulcent and connective tissue tonic with no modern clinical validation.

Outcomes

What This Is Expected To Influence

Primary Outcomes

  • Joint/tendon/connective tissue support (traditional use)

Secondary Outcomes

  • GI tissue soothing via mucilage content

Safety

Contraindications and Interactions

Contraindications

  • Diabetes (may potentiate hypoglycemic medication)

Side effects

  • GI upset at high doses

Interactions

  • Hypoglycemic agents
  • Cardiac glycosides

Avoid if

  • Consuming berries rather than rhizome
  • Diabetic on medication without clinician oversight

Evidence

Study-level References

solomons-seals-SRC-001Review
Sourceopen_in_new

Zhao P, et al. "Genus Polygonatum: A Review of Ethnopharmacology, Phytochemistry and Pharmacology." J Ethnopharmacol. 2018.

Population: Preclinical / Historical mapping

Key findings: The genus Polygonatum has been used traditionally for restorative purposes. Phytochemical analysis reveals polysaccharides, steroidal saponins, and flavonoids, which exhibit anti-inflammatory, anti-diabetic, and immune-stimulating properties in preclinical models. Human RCTs are lacking.

Paper content

The genus Polygonatum has been used traditionally for restorative purposes. Phytochemical analysis reveals polysaccharides, steroidal saponins, and flavonoids, which exhibit anti-inflammatory, anti-diabetic, and immune-stimulating properties in preclinical models. Human RCTs are lacking.

solomons-seals-SRC-002Comprehensive narrative review of 80 articles (1984 to 2025).
Sourceopen_in_new

Zhang Y, Li X, Yu D, et al. Botany, chemistry, bio-activity, and application of Polygonatum odoratum (Mill.) Druce: a comprehensive review. Naunyn Schmiedebergs Arch Pharmacol. 2025;398(10):13545-13566. doi:10.1007/s00210-025-04210-y. PMID:40335673.

Population: In vitro and preclinical models. No human clinical trial data.

Dose protocol: Comprehensive review of 80 articles on P. odoratum chemistry and bioactivity

Key findings: Identified 174 chemical components including polysaccharides, flavonoids, and saponins with preclinical antioxidant, anti-tumor, anti-diabetic, anti-inflammatory, and immunomodulatory properties.

Notes: Most thorough modern phytochemical profile of P. odoratum. All evidence remains preclinical with no human clinical trials.

Paper content

This comprehensive review analyzed 80 articles on Polygonatum odoratum, identifying 174 chemical components including polysaccharides, flavonoids, and saponins. Documented bioactivities include antioxidant, anti-tumor, anti-diabetic, anti-inflammatory, immunomodulatory, antifungal, and antiviral properties in preclinical models. The review provides the most current and thorough phytochemical and pharmacological profile of P. odoratum, but all evidence remains preclinical. No human clinical trial data were identified. This reinforces the D-grade evidence tier for Solomon's seal, confirming that despite a rich and diverse phytochemical profile, clinical validation is still entirely absent.

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