Pet owners and veterinarians are expressing concern over the potential relationship between grain-free pet foods and heart disease known as Dilated Cardiomyopathy (DCM). However, little research and data are available on this topic, and some industry professionals fail to recognize the greater issue at hand. DCM is just one of the many health concerns that pet owners face, including cancer, diabetes, kidney disease, and allergies.

In this article, we will take a look at the evolution of pet food, from the invention of the dog biscuit to the extrusion process of making kibble and the current trend of individualized nutrition.