Siberian Solomon's seal / huang jing (黄精)

Polygonatum sibiricum

Edible plant

Chinese

Photo credit: Fumikas Sagisavas

Safety information

Toxicity: Low once processed; raw rhizome irritates the throat (needles/saponins) — must be processed.

Contraindications: Spleen deficiency with dampness/loose stools, phlegm-damp cough (TCM).

Interactions: Additive with hypoglycemics (theoretical).

Evidence level

Preclinical

Supported by laboratory or animal studies; not yet confirmed in humans.

Preparations

nine-steam-nine-sun processing (essential) · rhizome

Part used: rhizome

Evidence:Traditional (systematized)

tonic food/congee · rhizome

Part used: rhizome

Evidence:Traditional (systematized)

in formula · rhizome

Part used: rhizome

Evidence:Traditional (systematized)

decoction · rhizome

Part used: rhizome

Traditional use: tonifies qi and yin, strengthens the spleen, moistens the lung, supplements the kidney; fatigue, dry cough, wasting-thirst, weakness

Proposed mechanism: polysaccharides (PSP), steroidal saponins, flavonoids — immunomodulatory, antioxidant, anti-fatigue, hypoglycemic, gut-barrier/prebiotic

Dosage note (descriptive only): must be processed (nine-steam-nine-sun)

Evidence:Preclinical

General preparation guide →

Associated conditions

wasting thirst Fatigue / weakness Cough Fatigue / weakness

Edibility

Edible parts: Processed — listed in China as medicine-food homologous; processed rhizome used in congee, soups, tea.

Toxic lookalike warning

Polygonatum can be confused with lily-of-the-valley (Convallaria, cardiotoxic) and other woodland rhizomes/shoots — positively identify before any wild use; eat only properly processed huang jing.

Nutritional notes

Polysaccharides, sugars (functional-tonic food).

Healing traditions

Chinese

Sources (2)

[E43] Polygonatum sibiricum polysaccharide intestinal-barrier review (Front. Pharmacol.)
[E44] natural vs processed P. sibiricum bioactive-components review

All sources →