I have a question about dog food and human food?

Image by Urban Combing (Ultrastar175g)
Reminds me of the opening sequence to the great Brazilian movie "City of God".

Question by Elizabet: I have a question about dog food and human food?
Does a dog eating dog food all their lives make them live longer or shorter compared to them eating human food? Or is it like the same thing?

Becuase dog food has a bunch of chemicals in them.

Like feeding them Chicken you made for the family. And giving them bones from the chicken.
And making them food with rice, carrots and chicken. MY dog will not eat dog food. She likes cat food better, so we have to feed her human food.
NOT THE SMALL ONES PEOPLE THe chicken legs.

Feel free to answer in the comment section below