Fastrack Canine Microbial Supplement enhances digestion and improves stamina and hair coat. Helps build a strong foundation for a lifetime of canine well-being and companionship. Canine Microbial Supplement contains lactic-acid-producing bacteria, live yeast, dried chicory root and enzymes to nourish your dog and maintain digestive tract health. These components complement the dog's feeding program to improve utilization of the food by your dog and help maintain a healthy, active life. Also consider providing Adult Dog Supplement for puppies and dogs up to 6 years of age.