Body size affects dog lifespan

When genes and diet are the same, a dog’s lifespan can be measured by body shape and weight. The average lifespan of dogs weighing less than 15 pounds is about 14 years, and the lifespan of medium-sized dogs is 10-12 years. The life span of large dogs is even shorter, only 6-8 years. Therefore, the larger the dog, the shorter the lifespan, and the smaller the dog, the longer the lifespan.

Genes affect a dog’s lifespan

In addition to the dog’s size, the factors that affect the dog’s lifespan include the dog’s genes. If dog parents live long themselves, their puppies will also have longevity genes. If a dog's parents have a genetic disease, it may be passed on to offspring through genetic genes, thus affecting the dog's lifespan.

Diet affects the dog’s lifespan

The diet that affects the dog’s lifespan is not about how well the dog eats, but rather about slowing down the dog’s growth rate. Medium-sized dogs or large dogs should be fed specific dog food from an early age. This kind of dog food contains less protein than ordinary dog ​​food, so as to extend the adult time of medium and large dogs to 2-3 years old. Most owners like to make their dogs grow quickly, and there is no domestic dog food that can slow down the growth of dogs.