NaturVet Digestive Enzymes with Prebiotics & Probiotics Soft Chews for Cats. NaturVet® Digestive Enzymes Cat Soft Chews are for use in cats over the age of 12 weeks. A source of: alpha-Amylase which can hydrolyze starch. Protease which can hydrolyze proteins. Cellulase which can break down cellulose. Lipase which can hydrolyze triglycerides. Contains a source of live (viable) naturally occurring microorganisms. Helps to unlock vitamins, minerals and other important nutrients from food for optimal absorption Great for food transitioning Provides energy due to better utilization of nutrients Available Size: 3.1 oz (90 g) 60 Soft Chews