Synopsis

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

Citrus reticulata (commonly known as mandarin orange or tangerine) peel is a traditional ingredient in Chinese medicine, where it is referred to as "Chen Pi." In traditional Chinese medical practice, Chen Pi is used to regulate qi, improve digestion, and, notably, to resolve "dampness"—a concept loosely associated with fluid retention or edema in Western terms. The traditional rationale is that by promoting the movement of qi and resolving dampness, Citrus reticulata can help reduce swelling or fluid accumulation. However, while numerous classical texts and herbal compendia describe this use, scientific validation is limited. Some in vitro and animal studies suggest that extracts of Citrus reticulata may possess mild diuretic and anti-inflammatory properties, which could theoretically contribute to its traditional use in edema. Nevertheless, there are no robust clinical trials or systematic reviews directly supporting its efficacy for treating edema in humans. The evidence base is therefore primarily traditional, with a low level of scientific corroboration (hence a rating of 2). More rigorous research would be necessary to substantiate its use for this indication according to modern medical standards.

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