A healthy weight is different for all dogs and ages
Just like humans, not all dogs are created the same. Some dogs are naturally more slender, while others are built more stocky. And as dogs age, their metabolisms change, so their ideal weight may also adjust over time.
That's why it's important to talk to your veterinarian about what a healthy weight is for your specific dog breed. They can help you determine your dog's ideal weight based on their breed, age, and activity level.