Synopsis

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

Turnip (Brassica rapa) has a long history of use in traditional medicine, particularly in Chinese medicine, where it is recommended for coughs associated with "dampness"—a concept describing phlegm and moisture accumulation in the lungs. Traditional Chinese Medicine (TCM) texts mention turnip as a food and medicinal agent that can help resolve phlegm and reduce coughing, often by promoting digestion and helping the body expel excess moisture. The use is typically as a decoction, syrup, or cooked dish, and turnip is sometimes combined with honey or other herbs thought to support lung health.

However, scientific studies specifically validating the use of turnip for cough, especially coughs linked to dampness or phlegm, are limited. Some laboratory research has identified antioxidant and mild anti-inflammatory properties in turnip extracts, but these findings are not directly linked to clinical efficacy for respiratory symptoms. The evidence rating of 2 reflects the strong traditional basis for turnip's use, with little high-quality clinical research to confirm or refute its effectiveness for cough (damp).

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