Prescription Diet™Canine t/d™ helps to maintain oral health. Key Benefits · Clinically proven to help reduce the build-up of tartar, plaque and stain. · Contains a special fibre matrix with aligned fibres that help the kibble engulf the tooth before it splits. This provides a gentle scraping action that helps reduce the build-up of plaque, tartar and stains. · Helps to neutralise free radicals as it contains high level of antioxidants. Please consult your vet for further information and guidance on what is best for your dog.