Evidence supporting the use of: Black currant
For the health condition: Congestion

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Synopsis

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

Black currant (Ribes nigrum) has a history of traditional use in European folk medicine for treating various respiratory complaints, including congestion. The berries and leaves have been used in teas, syrups, and extracts, often as home remedies for colds, sore throats, and nasal or chest congestion. The rationale behind its use is primarily due to its content of vitamin C, anthocyanins, and other polyphenols, which are believed to support immune function and potentially reduce inflammation in the respiratory tract.

However, scientific validation for black currant’s effectiveness specifically in treating or alleviating congestion (nasal or chest) is limited. Some laboratory and animal studies indicate that black currant extracts have anti-inflammatory and antioxidant properties, which theoretically could help reduce the inflammation that contributes to congestion. A few small human studies have shown that black currant supplements may modulate immune responses and help reduce symptoms of upper respiratory tract infections, but these studies rarely focus specifically on congestion as an outcome, and results are not robust or widely replicated.

In summary, while black currant is traditionally used for congestion and has bioactive compounds that may be relevant, the direct evidence supporting its use for this specific symptom is weak. Its application remains primarily traditional, with only modest indirect scientific support.

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