Hill’s Pet Nutrition is an American company that has been owned by Colgate-Palmolive since 1976. Its roots go back to 1948, when vet Dr Mark Morris Sr. arranged for the Hill Packing Company in Topeka, Kansas, to produce a food he had developed for a guide dog with kidney failure. That food became Prescription Diet k/d. Hill’s then launched Science Diet in 1968 as a wellness range for healthy pets, sold in the UK as Science Plan.
