Synopsis

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

Lime (Citrus aurantiifolia) has been traditionally used in many cultures as a home remedy for colds and to support immune health. Folk practices often involve using lime juice in warm water, teas, or with honey as a soothing drink to help alleviate symptoms of the common cold. The rationale largely stems from lime’s high vitamin C content, as vitamin C has long been associated with immune system support. However, direct evidence supporting lime itself as an effective preventative or treatment for colds is limited.

Scientific studies on vitamin C supplementation (not specifically lime) suggest that regular vitamin C intake may slightly reduce the duration and severity of colds, but its effectiveness as a preventative measure in the general population is minimal. There are no robust clinical trials directly investigating lime juice or lime extracts for cold prevention or treatment. Thus, while the use of lime in this context is well-rooted in tradition, the scientific evidence for its effectiveness is weak, with most findings extrapolated from studies on vitamin C more broadly rather than lime itself.

In summary, lime is used primarily due to traditional beliefs and practices, with a modest basis in the broader literature on vitamin C. More rigorous scientific research specific to lime is needed to justify its use for cold prevention or treatment beyond traditional uses and anecdotal reports.

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