Oregano Tea for Respiratory Health

Research suggests that oregano tea has not been directly studied for respiratory health in the evidence provided here, though the linked studies touch on related areas involving viral respiratory illness and herbal infusions. The available evidence includes two population-level observational studies examining smell loss as a marker of COVID-19 infection, and one laboratory cell culture study finding that water infusions of sage and perilla — herbs in the same mint family as oregano — demonstrated antiviral activity against several SARS-CoV-2 variants in vitro, performing comparably to established antivirals in that controlled setting. Studies indicate that while these lab findings are intriguing, they come from cell experiments rather than human trials, meaning results cannot be directly applied to conclusions about drinking herbal teas for respiratory illness in people. Overall, the current body of evidence linked here does not directly support or refute claims about oregano tea for respiratory health, and readers should be aware that promising laboratory results frequently do not translate to the same effects in the human body.