Evidence supporting the use of: Lo Han Guo
For the health condition: Rhinitis, Allergic

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Synopsis

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

Lo Han Guo (Siraitia grosvenorii), also known as monk fruit, has a long history of use in traditional Chinese medicine (TCM), particularly for respiratory ailments such as cough, sore throat, and phlegm accumulation. In TCM, Lo Han Guo is classified as a cooling herb and is often used to clear heat and moisten the lungs. Its use for rhinitis, especially allergic rhinitis, stems from these traditional indications, as TCM practitioners often associate rhinitis symptoms with "heat" or "dryness" in the lungs and throat.

Despite its traditional use, there is limited modern scientific evidence directly supporting the efficacy of Lo Han Guo for allergic rhinitis. Most research on monk fruit focuses on its sweetening properties and antioxidant activity rather than its effects on allergy symptoms. There are some in vitro and animal studies suggesting anti-inflammatory and anti-histaminic effects of extracts from Siraitia grosvenorii, but these are preliminary and not specifically targeted at allergic rhinitis in humans.

In summary, the use of Lo Han Guo for allergic rhinitis is primarily justified by traditional practice rather than robust scientific validation. The evidence supporting its use for this condition is weak (rated 2/5), relying largely on its historical reputation and general anti-inflammatory properties rather than direct clinical trials.

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