What to Feed an Aging Dog: A Senior Nutrition Guide
Older dogs have different nutritional needs. Here's how to adjust your senior dog's diet the right way.
1 min read · Updated 6/28/2026 · by SeniorPawGuide
How a senior dog's needs change
Older dogs are often less active and can gain weight, but they still need quality protein to maintain muscle.
What to prioritize
- High-quality animal protein as the first ingredient.
- Controlled calories to avoid weight gain.
- Added joint support (glucosamine, omega-3) where helpful.
When to switch to senior food
Most dogs transition to a senior formula around 7 years old, but breed and size matter — check with your vet.
⚕️ Important: Always talk to your vet before changing your senior pet's diet.
Frequently asked questions
When is a dog considered senior?
Generally around 7 years old, though large breeds age sooner and small breeds later.
Do senior dogs need less protein?
No — healthy senior dogs still need quality protein to maintain muscle. Talk to your vet about your dog's needs.