Firstly, if your cat or dog is drinking or urinating more than usual or if you notice a change in its stools or unusually frequent vomiting, your pet should undergo a thorough check-up and a complete blood test. These signs need to be assessed, since they can be symptoms of a number of illnesses.
Appetite is a good measure of your animal’s health. However, some diseases actually make your pet eat more! The rule of thumb is that any increase or decrease in appetite should be investigated.
As an animal ages, its nutritional needs evolve, but not all older pets should eat the same diet. In an overweight older pet, a low-calorie diet may be more suitable than a basic senior formula.
Additionally, an older pet whose kidneys are beginning to fail will do better on a specialized kidney support diet rather than on a regular senior diet. And if your pet is showing signs of osteoarthritis, your veterinarian may recommend a food enriched with glucosamine and omega-3 fatty acids. Be aware that not all pet foods contain the required total therapeutic dose of these supplements.