Senior dog food has no official standard. When to switch by size and condition, the protein myth, body-condition checks and what to ask your vet.
See roughly how your dog’s age compares with a human’s, using a size-based vet chart and the UC San Diego epigenetic clock, with a simple life-stage guide.
Keep your dog’s joints healthy at every age: early signs of pain, weight and exercise advice, home changes, what supplement evidence shows, and when to see the vet.
How to care for a senior dog: when dogs become senior, changes to mention to your vet, home and exercise adjustments, and quality of life.