Thank you for visiting

To log out and end your session, click "OK"


For Professionals

Research Library

Practice Management

Products

Our Company | FAQ

For Professionals

Veterinarians

Veterinary Technicians

Students

Specialists

Clinic Managers

Front Desk

Research Library

Feline Research

Canine Research

All Research

Practice Management

Feeding Guide Software

Compliance Support

Client Communication

Staff Training Tools

Consultation Services

Continuing Education

Client Education

Products

Hill's Timeline

Hill's Pet Nutrition Timeline

Take a look at Hill's through the years!

1939 Morris Frank meets Dr. Morris Sr., at a luncheon and asks him to examine his guide dog Buddy. Dr. Morris diagnosed kidney failure. He believes Buddy can be helped with a food he had developed, and sends Mr. Frank home with Raritan Ration B. This food was the forerunner of Prescription Diet® k/d® Canine and is developed to help dogs with renal failure and insufficiency. Dr. Morris cans Raritan Ration B in glass jars.
1948 Dr. Mark Morris works with Burton Hill, of the Hill Packing Company, to can Canine k/d®, formerly known as Raritan Ration B and Canine p/d®, formerly known as Raritan Ration C. Dr. Morris establishes a charity for small animals that would later became known as Morris Animal Foundation - a foundation where animals are #1, and their welfare and health the sole, unwavering focus.
1949 Prescription Diet® i/d® is developed for gastrointestinal disorders in dogs. Prescription Diet® r/d® is developed for obesity in dogs.
1958 Hill Packing Company establishes plants in Kansas, South Carolina, South Dakota, Ohio, Arkansas, Massachusetts and Washington.
1960 Dr. Morris Sr. becomes the American Veterinary Medical Association (AVMA) president.
1962 Burton Hill dies; Richard L. Davis replaces him as Hill's Pet Nutrition president.
1964 Prescription Diet® h/d® is developed for pets with heart failure and heart disease.
1965 Prescription Diet® d/d® is developed for pets with dermatological conditions associated with certain food allergies.
1966 Richard L. Davis dies; Don F. Hogue replaces him as Hill's Pet Nutrition president.
1968 Riviana Foods purchases Hill's Pet Nutrition and its formulas, contracts with Mark Morris Associates to develop new pet food formulas.
1968 Dr. Mark Morris Jr., creates the Science Diet® line of pet foods for healthy pets. The first Science Diet® pet food, Adult Maintenance, is marketed.
1971 Prescription Diet® c/d® is developed for cats with lower urinary tract disease.
1976 Colgate-Palmolive Company acquires Riviana Foods.
1977 Prescription Diet® u/d® is developed for canine urinary tract disease due to calcium oxalate, urate and cystine.
1979 Science Diet® Senior developed for geriatric wellness.
1981 Bob Wheeler becomes President of Hill's Pet Nutrition. Prescription Diet® s/d® is developed for canine urinary tract conditions due to struvite dissolution. The revolutionary new product could actually help the body dissolve certain types of bladder stones in dogs.
1983 First publication of the Small Animal Clinical Nutrition textbook, co-authored by Dr. Morris Jr., which would become the definitive text on nutrition for dogs and cats and used in veterinary colleges worldwide.
1987 Prescription Diet® w/d® is developed for pets needing weight control and fiber-responsive diseases and digestive troubles.
1992 Prescription Diet® a/d® is developed for assisted feeding and recovery.
1993 Dr. Mark Morris Sr. passed away at age 92.
1994 Prescription Diet® t/d® is developed for oral care.
1996 Science Diet® Large Breed Growth puppy formula is developed.
1998 Prescription Diet® n/d® is developed as the only therapeutic pet food clinically proven to increase the survival time of dogs undergoing a cancer treatment and improve their quality of life.
1999 Hill's Pet Nutrition becomes a $1 billion company. Science Diet® Hairball Control is developed.
2000 Prescription Diet® z/d® is developed for pets with food allergies. Science Diet® Sensitive Skin and Sensitive Stomach are developed.
2001 Prescription Diet® b/d® is developed with an exclusive blend of antioxidants to help combat signs of brain aging and improve the learning ability of older dogs.
2002 Hill's Science Diet Shelter Nutrition Partnership established.
2003 Prescription Diet® m/d® developed for cats who are in need of weight loss and/or who have diabetes. Science Diet® Advanced Protection® launches as an extraordinary line of pet foods with the highest levels of antioxidants of any pet food on the market.
2005 Prescription Diet® j/d® is developed for dogs with mobility problems. Science Diet® Indoor Cat is marketed.
2007 Dr. Mark Morris Jr. passed away. Prescription Diet® c/d® Multicare Feline developed for cats with lower urinary tract disease

Breakthrough Therapy for
Feline Thyroid Health

NEW Hill’s® Prescription Diet® y/d™ is
clinically proven nutrition to restore thyroid
health. Improvements in just 3 weeks.

Discover the evidence

Key to Clinical Nutrition

Key to Clinical Nutrition

  • Downloadable PDF
  • Evidence-Based Clinical
    Nutrition section
  • Links to product pages

Learn more

Key to Clinical Nutrition

Enter the Drive
Nutrition Sweepstakes!

You could win a Smart Car or other
valuable prizes!

Learn more and start nowEnter the Drive Nutrition Sweepstakes