Listerine Cool Mint could raise cancer risk, study warns about oral bacteria

Regular use reportedly boosts bacteria tied to cancers

A study published in the Journal of Medical Microbiology claims that regular use of Listerine Cool Mint mouthwash may increase cancer risk. Researchers say it is associated with higher levels of oral bacteria linked to periodontal disease and cancers of the esophagus and colon. The authors urge consistent oral hygiene practices to lower risk and keep mouths healthy.