Synopsis

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

Sumac (Rhus spp., including Rhus coriaria and related species) has a long history of use in traditional medicine systems, particularly in the Middle East, the Mediterranean, and parts of Asia, as a remedy for a variety of ailments including infections. Historically, sumac has been applied externally to wounds and sores, or consumed as an infusion or spice, with the belief that it can help combat infections and support immune health. The traditional rationale often cites sumac's sourness and astringency, which were thought to "dry" or "cleanse" infected tissues.

Modern scientific studies have demonstrated that sumac extracts have in vitro antibacterial, antifungal, and antioxidant activity. For example, laboratory research has shown that sumac extracts can inhibit the growth of certain bacteria and fungi, such as Staphylococcus aureus and Escherichia coli. This antimicrobial activity is primarily attributed to polyphenols and tannins present in sumac. However, most of these studies are preclinical and have not advanced to robust human clinical trials. There is a lack of strong, high-quality evidence demonstrating that sumac is effective for treating infections in humans.

In summary, while traditional use of sumac for infection is well-documented and supported by some laboratory research, clinical validation in humans is currently lacking, so the evidence remains limited.

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