Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Polygonatum, commonly known as Solomon's Seal, has a long history of use in traditional medicine systems, particularly in East Asia. In Traditional Chinese Medicine (TCM), Polygonatum species such as Polygonatum sibiricum and Polygonatum odoratum (often referred to as Huang Jing or Yu Zhu) are used to "nourish yin," "moisten dryness," and "tonify the spleen and stomach." These actions are believed to support digestive health and help alleviate various forms of indigestion, including poor appetite, dry mouth, and general digestive weakness. The use for indigestion in TCM is based largely on historical texts and herbal compendia rather than modern clinical research.

Scientific evidence for the efficacy of Polygonatum in treating indigestion specifically is limited. Most modern studies on Polygonatum have focused on its antioxidant, anti-inflammatory, and immune-modulating properties, or its potential role in glycemic control. There are a few preclinical studies suggesting that certain extracts may have gastroprotective effects or help regulate gut motility, but these are preliminary and not directly focused on indigestion in humans. No high-quality clinical trials have confirmed its effectiveness for this specific indication. Thus, while Polygonatum is traditionally used for indigestion, current scientific validation is weak, and its use is primarily supported by empirical tradition rather than robust evidence.

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