Evidence supporting the use of: Luo Han Guo
For the health condition: Colds (with fever)

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Synopsis

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

Luo Han Guo (Siraitia grosvenorii), also known as monk fruit, has a long history of use in Traditional Chinese Medicine (TCM), particularly for conditions affecting the lungs and throat. In TCM, Luo Han Guo is classified as a "cooling" herb and is commonly used to relieve cough, sore throat, and symptoms of colds, especially when accompanied by fever. Classical texts and herbal compendiums describe its use for "clearing heat" and "moistening the lungs," which aligns with the symptomatic relief sought in febrile colds with throat involvement. Preparations often involve decoctions or infusions of the dried fruit, sometimes combined with other herbs. However, scientific validation for its effectiveness specifically in treating colds with fever is limited. While Luo Han Guo contains mogrosides with demonstrated antioxidant and anti-inflammatory properties in laboratory studies, there is a lack of robust clinical trials directly linking its use to improved outcomes in viral upper respiratory infections or fever reduction. Most modern research has focused on its sweetening properties and potential antidiabetic effects rather than its traditional indications. Thus, while its use is well-established in TCM for colds with fever, contemporary scientific support for this specific indication remains weak.

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