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, especially within Traditional Chinese Medicine (TCM). It is often used for its supposed ability to "nourish yin," moisten the lungs, and support the body's general resistance to illness, which includes the prevention of colds or respiratory infections. In TCM, Polygonatum species such as Polygonatum sibiricum and Polygonatum odoratum are sometimes included in herbal formulas designed to strengthen the immune system or prevent seasonal illnesses. However, these uses are grounded in historical and theoretical frameworks of traditional medicine rather than modern biomedical research.

Scientific evidence directly supporting Polygonatum for the prevention of colds is minimal. While some laboratory studies have explored its immunomodulatory or anti-inflammatory properties, there are no high-quality clinical trials that confirm its efficacy in preventing viral respiratory infections in humans. The traditional use and the underlying rationale are thus primarily based on centuries of empirical use rather than rigorous scientific validation. Accordingly, the strength of evidence supporting Polygonatum for preventing colds is modest and rooted in traditional practice rather than modern research.

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Other ingredients used for Colds (prevention)

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