The present disclosure provides methods and compositions for treating or reducing a dental condition in an animal, particularly in canine and feline companion animals. Compositions useful in the disclosed methods comprise an effective amount of lactic acid. The disclosed compositions may also contain oral health promoting effective amounts of at least one antioxidant. Dental conditions treated or reduced according to the disclosed methods include dental plaque, calculus, tooth staining, halitosis, stomatitis, gingivitis, periodontitis, and combinations thereof.