Yu Zhu

Polygonatum odoratum is a yin-tonic herb in Traditional Chinese Medicine, traditionally prepared as a decoction for dry cough, dry throat, and respiratory dryness, but its pharmacological data is largely in-vitro and animal (immunomodulatory and hypoglycemic signals) with no high-quality RCTs in healthy adults. It contains polysaccharides, steroidal saponins, and homoisoflavonoids. Generally considered well-tolerated in traditional use, but there is no formal safety database — use caution with diabetes medications due to possible additive hypoglycemic effect. Resolver note: distinct from American Solomon's Seal (Polygonatum biflorum); if Polygonatum sibiricum (Huang Jing) is added later, ensure aliases don't collide, as both are called 'Solomon's Seal' in some Western herbal usage.

Limited clinical evidence. No modern RCTs in healthy adults; traditional use only.