Purina Cat Chow vs Hill's Science Diet

Purina Cat Chow vs. Hill's Science Diet

In this comparison article for Purina Cat Chow vs Hill's Science Diet, we'll highlight the key differences between these two pet food brands. To properly compare Purina Cat Chow and Hill's Science Diet, we'll use up-to-date nutritional and price information.

There are many factors to consider when choosing the best pet food brand for your pet. Factors such as ingredient quality, guaranteed analysis, product safety, brand history, and cost are among the most important factors to consider.

Throughout this Hill's Science Diet vs Purina Cat Chow comparison, we've utilized average data to make general comparisons. If you'd like to see individual product reviews, visit our Purina Cat Chow Review Page or Hill's Science Diet Review Page.

Guaranteed Analysis: Hill's Science Diet vs. Purina Cat Chow

According to AAFCO, all pet food labels must provide a guaranteed analysis of nutrient content. The analysis must provide guaranteed minimum percentages of crude protein and crude fat, and maximum percentages of crude fiber and moisture.

All percentages used in this comparison are averages reported on a dry matter basis.

Purina Cat Chow Cat Food vs. Hill's Science Diet Cat Food

Dry Cat Food Purina Cat Chow Hill's Science Diet
Crude Protein 39.6% 35.2%
Crude Fat 12.7% 18.5%
Crude Fiber 4.4% 5.8%

Crude Protein Comparison For Cat Food

Protein is an extremely important part of your cat's diet. Without sufficient protein, cats can develop a wide-range of serious health problems.

Our analysis shows that Purina Cat Chow guarantees 4.38% more protein than Hill's Science Diet dry cat food recipes.


Crude Fat Comparison For Cat Food

There are many ways in which dietary fat contributes to the overall health of our feline friends. Here is a short list of benefits provided by fats (not exhaustive):

  • Fats help with the digestion and absorption of fat-soluble vitamins
  • Reduce inflammation associated with arthritis
  • Slow the growth of yeast infections
  • Prevent or reduce the likelihood of certain heart problems.
  • Aid in the development of the retina and visual cortex.

There is a relatively large difference between the fat content of Hill's Science Diet and Purina Cat Chow. On average, Purina Cat Chow dry cat food recipes contain 5.86% less fat than Hill's Science Diet recipes.


Purina Cat Chow and Hill's Science Diet both provide roughly the same amount of crude fiber.

Purina Cat Chow Pet Food Ingredients vs. Hill's Science Diet Pet Food Ingredients

Purina Cat Chow and Hill's Science Diet both use the following controversial ingredients in many of their products:

Pea Protein
Brewers Rice
Corn Gluten Meal
Whole Grain Wheat
Powdered Cellulose

Here are some of the controversial ingredients used only by Purina Cat Chow.

Corn Meal
Canola Meal
Ground Wheat
Soybean Flour
Soybean Hulls
Ground Whole Wheat
Meat And Bone Meal
Turkey By-Product Meal
Chicken By-Product Meal
Poultry By-Product Meal
Animal Fat (Preserved With Mixed Tocopherols)

Here are some of the controversial ingredients used only by Hill's Science Diet.

Liver
Caramel
Corn Flour
Iron Oxide
Pork Plasma
Poultry Fat
Animal Liver
Wheat Gluten
Caramel Color
Tomato Pomace
Beef By-Products
Pork By-Products
Whole Grain Corn
Dried Tomato Pomace
Pea Protein Concentrate
Soybean Protein Isolate

We believe that certain pet food ingredients are linked to adverse health affects; these ingredients are classified as harmful.

Purina Cat Chow and Hill's Science Diet both use the following harmful ingredients in many of their products:

Menadione Sodium Bisulfite Complex

Here are some of the harmful ingredients used only by Purina Cat Chow.

Blue 2
Red 40
Yellow 5

Product Safety: Recall History of Purina Cat Chow & Hill's Science Diet?

According to our records, Purina Cat Chow has never been recalled.

Hill's Science Diet has been recalled once.

  • Jan. 31, 2019: elevated levels of Vitamin D

Price Comparison: Which Brand Is More Expensive?

Dry Cat Food Purina Cat Chow Hill's Science Diet
Per Pound $1.40 $2.90
Per Calorie $0.0008 $0.0017

The average cost-per-lb is heavily influenced by the varying amounts of moisture present in each brand's food products (wet vs. dry food, dry vs. freeze-dried food, etc). However, the average cost-per-kcal eliminates the influence of moisture. Therefore, the average cost-per-kcal is the better metric to consider.

If you'd like to calculate the average cost-per-day or cost-pet-year of feeding Purina Cat Chow or Hill's Science Diet, input your pet's weight into our cost analyzer widget.

Averages price data can identify whether or not there exists a significant price difference between two brands. However, the actual price that you'll pay for Purina Cat Chow or Hill's Science Diet will depend on your shopping habits.

Pet owners who use our price comparison feature typically save more than 25% off retail prices for Purina Cat Chow and Hill's Science Diet. In addition, we currently have some great coupons for our readers.


Disclosure: PawDiet has an affiliate relationship with stores featured (or linked-to) in this article. We are compensated for referring customers. Thank you for shopping with our retail partners!

Where To Buy Purina Cat Chow Pet Foods

You can purchase Purina Cat Chow pet foods from the following stores:





Where To Buy Hill's Science Diet Pet Foods

You can purchase Hill's Science Diet pet food products from these retailers:









Type Of Pet Foods Available

Product Purina Cat Chow Hill's Science Diet
Dry Dog Food 32 Recipes
Wet Dog Food 30 Recipes
Dog Treats 15 Treats
Dry Cat Food 7 Recipes 18 Recipes
Wet Cat Food 39 Recipes
Cat Treats

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