 You'd never knowingly feed your pup mystery meat or spoiled grocery store food, so why are those some of the most common protein sources in kibble today? Yep, the dog food ingredient, meat meal, can be made of spoiled supermarket meat and packing plant scraps. I'm veterinarian Dr. Marty Goldstein. Your dog needs a biologically appropriate diet similar to what they would eat in the wild. That's why I developed Nature's Blend, a freeze-dried raw food made with premium cuts of meat, omega-3 rich seeds, and superfood veggies and fruits.