Microbiome Labs FidoSpore is a spore-based probiotic supplement formulated specifically for dogs — bringing the same spore probiotic technology that makes MegaSporeBiotic the #1 clinician-recommended human spore probiotic to veterinary use. Bacillus spore probiotics are particularly well-suited for dogs because they are naturally found in soil environments that dogs encounter regularly, and their heat- and acid-stable spore format survives the manufacturing, storage, and passage through the dog's highly acidic stomach intact.FidoSpore delivers clinically studied Bacillus spore strains appropriate for canine gut health — supporting microbiome balance, digestive comfort, immune function, and short-chain fatty acid production in dogs. Veterinarians and integrative animal health practitioners recommend spore-based probiotics for dogs with GI issues, those undergoing or recovering from antibiotics, dogs on grain-free diets (which alter the gut microbiome), and for ongoing microbiome maintenance. 30 capsules can be opened and mixed into food for easy administration. Microbiome Labs is a science-first probiotic and gut health supplement company founded by Dr. Kiran Krishnan, a research microbiologist, built around spore-based probiotic technology and clinical research on the human gut microbiome. Available at Beauty Riche with same-day shipping.