There is a lot of information these days about what kind of pet food you should feed your pets and why. Thankfully, the trend is moving toward healthy, natural pet foods. One theory that is gaining popularity recommends customizing a dog’s protein source based on breed and geographic ancestry. In other words, Siberian Huskies evolved from a cold climate and a high fat diet including fish may be most appropriate, whereas a Beagle is likely to thrive more on lamb, rabbit, and chicken. More to Read.