Synopsis

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

Sumac, particularly the species Rhus coriaria (commonly known as culinary sumac), has a long history of use in traditional medicine systems across the Middle East, Mediterranean, and parts of Asia. In these traditions, sumac has been used as a remedy to support immune health and prevent or alleviate symptoms of colds and respiratory infections. Its traditional use for such purposes is often attributed to its high content of vitamin C, antioxidants (such as flavonoids and tannins), and its sour, astringent properties, which have been thought to help reduce sore throat and support general wellness during seasonal illnesses.

However, direct scientific evidence supporting the use of sumac for the prevention or treatment of the common cold is limited. While some laboratory and animal studies have demonstrated that sumac extracts possess antimicrobial, antiviral, and anti-inflammatory properties, these findings have not been robustly tested in human clinical trials specific to cold prevention or treatment. Thus, the traditional use of sumac for colds is not currently substantiated by high-quality clinical evidence, but its longstanding presence in folk medicine systems provides a historical basis for its use.

In summary, sumac's role in cold prevention is primarily justified by tradition, with only limited supportive evidence from in vitro and animal studies, and a lack of direct clinical trials in humans.

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