Hill's
Hill's Science Diet Senior Dog Food
Vet-recommended formula for dogs 7+. Supports joint health and immunity.
Best for
Dogs 7 years and older, especially those showing signs of slowing down, joint stiffness, or digestive sensitivity.
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Our Verdict
Hill's Science Diet Senior is the food most vets recommend when a dog hits 7+. The formula is backed by clinical research and specifically designed to support the joints, immune system, and digestion of older dogs. If your dog is slowing down, this is a smart place to start.
What We Like
- Vet-recommended formula
- Clinically proven antioxidants
- Supports healthy joints and mobility
- Made with real chicken
- Available in multiple sizes
Watch Out For
- Pricier than grocery store brands
- Some dogs take time to adjust to new food
Why Senior Formula Matters
Dogs over 7 have different nutritional needs than younger dogs. Their metabolism slows, joints need more support, and their immune system benefits from targeted antioxidants. Hill's Science Diet Senior is formulated specifically for these changes — it's not just regular food with a different label.
Transitioning Your Dog
Switch gradually over 7 days — mix increasing amounts of the new food with the old. A sudden switch can cause digestive upset even with high-quality food. Start with 25% new food, increase to 50% by day 4, 75% by day 6, then 100% on day 7.
Portion Guidance
Feeding amounts are based on your dog's weight and activity level. The bag has a clear feeding guide. Senior dogs are often less active, so err on the lower end to avoid weight gain — excess weight puts additional stress on aging joints.
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