Evidence supporting the use of: Fungus
For the health condition: Colds (antiviral)

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Synopsis

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

Fungi, particularly medicinal mushrooms such as Lentinula edodes (shiitake), Ganoderma lucidum (reishi), and Cordyceps species, have a long history of use in traditional medicine systems, especially in East Asia, to support immune health and treat colds or viral infections. Historical texts and folk practices often recommend mushroom extracts, teas, or powders for their perceived ability to enhance resistance to illness and reduce symptoms of respiratory infections. The traditional rationale is largely based on observed immune-boosting effects and the general strengthening of vitality rather than specific antiviral actions against cold viruses.

Modern scientific studies have begun to investigate these traditional claims, focusing on the immunomodulatory properties of certain fungal polysaccharides (e.g., beta-glucans). Some in vitro and animal studies suggest that these compounds can stimulate immune cell activity and may exhibit antiviral effects. However, robust clinical evidence in humans specifically supporting the use of fungi for the prevention or treatment of the common cold is limited. Most available data are preliminary or indirect, and large, high-quality trials are lacking. Therefore, while traditional use is well documented, scientific validation remains modest, justifying a moderate evidence rating based on tradition with some emerging but inconclusive scientific support.

More about Fungus
More about Colds (antiviral)

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Products containing Fungus

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