Synopsis

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

Camellia sinensis (the tea plant) has a long history of traditional use for the prevention and relief of cold symptoms, particularly in the form of green and black tea. In many cultures, hot tea is consumed to soothe sore throats, provide comfort, and potentially fend off colds. The traditional rationale is partly due to the warmth and hydration provided by tea, as well as the presence of various bioactive compounds, such as catechins and theanine, which are believed to support immune health.

Scientific studies have explored the potential antiviral and immune-modulating effects of tea polyphenols, particularly epigallocatechin gallate (EGCG) found in green tea. Some laboratory and animal studies have demonstrated that these compounds can inhibit the replication of certain viruses, including those responsible for respiratory infections. Additionally, limited human studies suggest that regular consumption of green tea may slightly reduce the incidence of upper respiratory tract infections, though evidence is not robust.

Despite these findings, clinical evidence remains limited and inconsistent, and there is no strong scientific consensus supporting the use of Camellia sinensis as a preventive measure for the common cold. Most support for its use in this context is rooted in tradition, with scientific validation being preliminary and insufficient for firm recommendations.

More about Camellia sinensis
More about Colds (prevention)

Other ingredients used for Colds (prevention)

Other health conditions supported by Camellia sinensis

Products containing Camellia sinensis