Nutrabar 12-Pack Senior Protein Bar for Dogs, 4-Ounce The Senior Formula Nutrabar is the all-natural true food bar for older dogs, endorsed by vets as a heart healthy snack 27 percent protein plus vitamins, minerals and amino acids; Contains Glucosamine Chondroitin to support joint health All-natural super premium chicken meal protein with zero by-products Gluten free multi-meal formulation Made in the USA by All American Pet Company, Inc. Satisfaction guaranteed