Some dogs are allergic to certain grains (wheat, soy, corn) found in pet foods while others are allergic to
certain protein sources used in pet food.
We have also learned that the biological availability
of certain protein sources actually determines how easy or difficult they are to metabolize.
Some dogs are allergic to specific items, such
as certain protein sources, gluten, or grains like wheat and corn, so they should only be given chew treats that are free of those allergy triggers.
Logically,
certain protein sources must be heated and therefore slightly denatured.
Although I encourage the consumption of animal products for optimal hormonal health, you can absolutely swap out
certain protein sources to suit your dietary preferences.