to make a superior product backed by scientific research he teamed up with canning manufacturer burton hill to fulfill his vision. the result became what we know today is science diet sold in veterinarian offices all across the country. but in 2013 the wall street journal reported hills was starting to see its profits decline because consumers no longer identified with their ingredients. science diet has since refocused on rebranding their image as more natural creating new product lines and shying away from controversial in rendered ingredients. the national renders association argues that they're providing a necessary role when it comes to the recycling of animal carcasses. if there wasn't anywhere to put the animal waste from the human food industry where would it go in the earth in the air. in the ocean. it all has to go somewhere. we have a huge quality control problem meaning the quality of ingredients coming into the industry anything from potentially fabulous u.s.d.a. inspected human grade all the way down to entirely rendered which is every piece and part you could ever imagine act