What is the normal life span of a dog that eats dry food as his only diet?

It's not accurate to say there's a "normal lifespan" for dogs based solely on their diet being dry food.

Here's why:

* Diet is only one factor: A dog's lifespan is influenced by breed, genetics, exercise, healthcare, environment, and overall lifestyle.

* Quality matters: Not all dry foods are created equal. Some are nutritionally complete and high-quality, while others may lack essential nutrients.

* Individual variations: Even dogs eating the same food can have different lifespans due to individual factors.

Instead of focusing on a specific lifespan, it's better to think about:

* Choosing a high-quality, balanced dry food: Look for brands that meet AAFCO (Association of American Feed Control Officials) standards and have ingredients appropriate for your dog's age and breed.

* Consulting your veterinarian: They can help you choose the best food for your dog and monitor their health.

* Providing a well-rounded lifestyle: Exercise, play, socialization, and regular vet checkups contribute significantly to a dog's overall health and longevity.

In summary: Dry food can be a healthy and convenient option for dogs, but it's not a guaranteed path to a specific lifespan. Focusing on a balanced diet, regular vet care, and a healthy lifestyle is key to maximizing your dog's years.