Excellent question. And the age is an important part of that because an older dog gaining weight, as opposed to Fenway -- who is 2 years old gaining weight -- it’s almost going to be diet and exercise all the time.
Now an older dog, it could be something medical. A lot of older dogs will start to suffer from a thyroid condition, hypothyroidism, where their thyroid gland is producing less of the hormone that controls metabolism. So metabolism drops. And it’s hard for them to keep the weight off because their body is not helping them anymore.
It’s a very easy blood test that your veterinarian can do. And it’s something that you can treat easily with a very inexpensive supplement.
If that’s not the case, then again, it’s the same as it would be with younger dog. A lower-fat diet, there are lot of great high-quality, low-fat diets out there. Lower in fat, higher in fiber, and more exercise. Walking more, it will help the owner and pet.