Synopsis

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

Cassia bark (Cinnamomum cassia), commonly referred to as Chinese cinnamon, has a long history of use in traditional medicine systems, particularly in Traditional Chinese Medicine (TCM) and Ayurveda. In these traditions, cassia bark is often included in herbal formulas aimed at relieving coughs and other respiratory complaints. TCM often attributes its effectiveness to its warming properties, which are believed to help “disperse cold” and promote the flow of qi (vital energy), thus alleviating cough and related symptoms such as phlegm and chest discomfort.

Despite its traditional reputation, there is limited scientific research directly evaluating cassia bark’s efficacy for cough relief. Some laboratory studies have indicated that cassia contains compounds (such as cinnamaldehyde and eugenol) with antimicrobial and anti-inflammatory properties, which could theoretically help with respiratory infections and associated cough. However, clinical trials specifically investigating cassia bark for cough are lacking, and most evidence remains anecdotal or based on traditional practices rather than modern scientific validation. Therefore, while the traditional use is well-documented and plausible mechanisms exist, robust clinical evidence is minimal, resulting in a relatively low evidence rating.

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