Kefir is a fermented beverage with its origin in Caucasian region, formed by acid-lactic bacteria's and yeasts, and used due to its organoleptic and therapeutic properties. The present study evaluated the possibility of an anti-inflammatory activity for induction of granulomatous tissue in rats and writhing test in mice. The results obtained shown that the kefir has inhibited the formation of the granulomatous tissue, as well as the number of writhings induced by acetic acid as compared to a control group. In this way the authors suggest a possible antiinflammatory action.