Synopsis

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

Lemongrass (Cymbopogon citratus) has a longstanding history of use in traditional medicine systems, particularly in Southeast Asian, Indian, and African cultures, where it is commonly used to help alleviate symptoms of colds and respiratory infections. Traditionally, lemongrass is consumed as a tea or used as an inhalant, with the belief that its aromatic oils can ease congestion and reduce fever. The antiviral justification stems from reports in folk medicine that lemongrass can "cool" the body and fight off respiratory pathogens.

Scientific studies on lemongrass's antiviral properties are limited and largely preclinical. Some laboratory studies have shown that essential oils and extracts from lemongrass possess mild antiviral activity against certain viruses in vitro, possibly due to compounds like citral and limonene. However, evidence supporting its efficacy specifically for treating or preventing the common cold in humans is lacking. No robust clinical trials have been conducted to date that establish lemongrass as an effective antiviral remedy for colds. Thus, while its use is justified by tradition and there is some weak laboratory evidence, the overall scientific support is minimal. Most recommendations for lemongrass in colds remain rooted in traditional practice rather than modern clinical validation.

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