In Clover OptaGest Digestive Aid Dog & Cat Supplement, 3.5 oz Diet change, Age, or stressful situations reduce digestive efficiency resulting in diarrhea and gas Potages is a complete, natural digestive formula of four plant enzymes, Plus prebiotic, to assure proper digestion and absorption of nutrients Clinically-tested levels of the prebiotic fos feed the naturally-occurring bacteria that replenish essential enzymes Potages contains no fillers, sugar, or preservatives