Hill's Science Diet vs. Royal Canin

Hill's Science Diet vs Royal Canin

In this comparison article for Hill's Science Diet vs Royal Canin, we'll highlight the key differences between these two pet food brands. To properly compare Hill's Science Diet and Royal Canin, 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 Royal Canin vs Hill's Science Diet comparison, we've utilized average data to make general comparisons. If you'd like to see individual product reviews, visit our Hill's Science Diet Review Page or Royal Canin Review Page.

Guaranteed Analysis: Royal Canin vs. Hill's Science Diet

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.

Hill's Science Diet Dog Food vs. Royal Canin Dog Food

Dry Dog Food Hill's Science Diet Royal Canin
Crude Protein 24.5% 26.5%
Crude Fat 14.8% 15.4%
Crude Fiber 4.3% 5.2%
Wet/Canned Dog Food Hill's Science Diet Royal Canin
Crude Protein 25.8% 30.1%
Crude Fat 17.1% 17.0%
Crude Fiber 3.8% 10.1%

Crude Protein Comparison For Dog Food

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

Hill's Science Diet and Royal Canin both provide roughly the same amount of crude protein. For wet dog foods, Royal Canin provides more protein (about 4.28% more).


Crude Fat Comparison For Dog Food

Fats are an absolutely vital component of a balanced canine diet. Not only do fats provide energy, but they also serve important roles in the normal development and function of your dog's body. For example, fats help dogs produce prostaglandins, which reduce inflammation among many other significant functions.

There is a relatively insignificant difference between the crude fat content of the two brands. With regards to wet dog food, Hill's Science Diet and Royal Canin also provide roughly the same amount of crude fat.


Both brands provide roughly the same amount of crude fiber. For wet dog foods, Royal Canin provides more fiber (about 6.30% more).

Hill's Science Diet Cat Food vs. Royal Canin Cat Food

Dry Cat Food Hill's Science Diet Royal Canin
Crude Protein 34.6% 33.6%
Crude Fat 18.4% 14.6%
Crude Fiber 6.0% 7.3%
Wet/Canned Cat Food Hill's Science Diet Royal Canin
Crude Protein 38.5% 45.0%
Crude Fat 22.0% 14.2%
Crude Fiber 4.4% 10.4%

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.

As you can see, Royal Canin and Hill's Science Diet guarantee a similar amount of crude protein. For wet cat foods, Royal Canin provides more protein (about 6.49% more).


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.

According to our data, Hill's Science Diet guarantees 3.85% more protein than Royal Canin. Although this difference is relatively small, it's still a notable difference. In addition, Hill's Science Diet wet cat foods also provide more fat than Royal Canin wet foods.


Hill's Science Diet Pet Food Ingredients vs. Royal Canin Pet Food Ingredients

Hill's Science Diet and Royal Canin both use the following controversial ingredients in many of their products:

Corn Flour
Pea Protein
Pork Plasma
Brewers Rice
Wheat Gluten
Tomato Pomace
Corn Gluten Meal
Pork By-Products
Powdered Cellulose
Dried Tomato Pomace
Soybean Protein Isolate

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

Liver
Caramel
Iron Oxide
Poultry Fat
Animal Liver
Caramel Color
Beef By-Products
Whole Grain Corn
Whole Grain Wheat
Pea Protein Concentrate

Here are some of the controversial ingredients used only by Royal Canin.

Corn
Wheat
Corn Meal
Corn Grits
Rice Hulls
Beef Plasma
Canola Meal
Vegetable Oil
Brewers Rice Flour
Chicken By-Products
Venison By-Products
Duck By-Product Meal
Chicken By-Product Meal
Hydrolyzed Poultry By-Products Aggregate

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

Hill's Science Diet and Royal Canin both use the following harmful ingredients in many of their products:

Menadione Sodium Bisulfite Complex

Product Safety: Recall History of Hill's Science Diet & Royal Canin?

According to our records, Hill's Science Diet has never been recalled.

Royal Canin has been recalled 3 times.

  • May 11, 2007: Melamine
  • April 19, 2007: Melamine
  • Feb. 2, 2006: excess level of vitamin D3

Price Comparison: Which Brand Is More Expensive?

Dry Dog Food Hill's Science Diet Royal Canin
Per Pound $1.89 $3.64
Per Calorie $0.0012 $0.0022
Dry Cat Food Hill's Science Diet Royal Canin
Per Pound $2.81 $5.12
Per Calorie $0.0017 $0.0031
Wet Dog Food Hill's Science Diet Royal Canin
Per Pound $3.03 $4.50
Per Calorie $0.0077 $0.0103
Wet Cat Food Hill's Science Diet Royal Canin
Per Pound $4.09 $6.91
Per Calorie $0.0075 $0.0189

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 Hill's Science Diet or Royal Canin, 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 Hill's Science Diet or Royal Canin will depend on your shopping habits.

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


Disclosure: PawDiet has an affiliate relationship with retailers featured in this article. We are compensated for referring customers. Thank you for shopping with our retail partners!

Where To Buy Hill's Science Diet and Royal Canin Pet Foods

You can purchase Hill's Science Diet pet foods from the following stores:


You can purchase Royal Canin pet food products from these retailers:

 

Type Of Pet Foods Available

Product Hill's Science Diet Royal Canin
Dry Dog Food 32 Recipes 135 Recipes
Wet Dog Food 30 Recipes 38 Recipes
Dog Treats 15 Treats 5 Treats
Dry Cat Food 18 Recipes 54 Recipes
Wet Cat Food 39 Recipes 40 Recipes
Cat Treats 5 Treats

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