Hill's GI Biome Dry
Top PickWhat We Like
- Firms loose stool within 24 hours in most dogs with chronic diarrhea
- Promotes healthy gut microbiome and regular bowel movements through prebiotic fiber
Worth Noting
- A small percentage of dogs refuse the taste, requiring a slow transition
- Extremely expensive per pound, making ongoing use a significant financial commitment
- Availability
- Prescription
- Protein Source
- Chicken
- Ingredient Type
- Multi
- Fiber & Probiotics
- Prebiotic fiber
Read the full review
This prescription diet uses ActivBiome+ technology to firm loose stool within 24 hours, making it a targeted solution for dogs with chronic diarrhea. It focuses on digestive microbiome and fiber therapy rather than skin or allergy support, which sets it apart from general sensitive stomach formulas like the top pick Hill's Science Diet. The hydrolyzed protein option in this set addresses immune reactions, while this one tackles stool consistency directly.
Best for dogs with persistent loose stool or diarrhea that hasn't improved on other diets. Requires a vet prescription and is priced at over $8 per pound, so long-term use is a significant financial commitment. Not suitable for dogs with normal stools or for owners looking for an affordable over-the-counter option.
Gradually mix with previous food over a week to help picky dogs accept the new taste.
Bottom line: The best choice if your dog has chronic diarrhea and you're prepared for the prescription and ongoing cost — for mild upset, the top pick Hill's Science Diet Sensitive Stomach is more practical.