Hill's Science Diet dog food provides key nutrients that are in amounts within an optimal range for your dog, and is precisely balanced for their nutritional needs. We develop products with the precise balance of 50 nutrients based on life stage, lifestyle, size or special care needs. We carefully avoid too little or too much of certain nutrients.

Balanced pet nutrition has been our passion for more than 70 years. Over 150 veterinarians and pet nutritionists are involved in the development of our products. We make every bag of our dry pet food with the highest quality natural ingredients. These ingredients must meet our strict requirements for purity and nutrient content, which exceed industry standards.

The right nutrition can help a cat's health, energy level and quality of life. Hill's Science Diet cat food contains nutrient-rich, high-quality ingredients like chicken, whole grains, and multivitamins to create nutritionally balanced food. Every bag of Science Diet provides key nutrients in amounts within an optimal range for your cat.

Most dog breeds are considered mature by the time they are 7 years old. If you have a larger breed, you may need to change the way you care for him by the time he's age 5. Giant breeds reach the mature adult stage at age 4. Hill’s Ideal Balance Large Breed dog food is perfectly balanced for large breed dogs. For medium sized dogs, consider Hill’s Ideal Balance Adult dog food that is available in a variety of flavors; for small or toy sized dogs, consider Hill’s Ideal Balance Small & Toy Breed dog food that comes in a variety of flavors, both dry and canned.

Begin the transition by mixing the current food with the new pet food. Gradually decrease the amount of the current pet food while increasing the amount of new pet food. Continue to do this over a 7-day period. Transitioning slowly can result in fewer digestive issues and better acceptance of the new pet food. For finicky, older, or pets with health conditions, the transition time could take 10 days or slightly longer.