Hill's Science Diet vs Wellness

Hill's Science Diet vs. Wellness

In this comparison article for Hill's Science Diet vs Wellness, we'll highlight the key differences between these two pet food brands. To properly compare Hill's Science Diet and Wellness, 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 Wellness 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 Wellness Review Page.

Guaranteed Analysis: Wellness 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. Wellness Dog Food

Dry Dog Food Hill's Science Diet Wellness
Crude Protein 24.5% 32.6%
Crude Fat 14.8% 15.6%
Crude Fiber 4.3% 5.7%
Wet/Canned Dog Food Hill's Science Diet Wellness
Crude Protein 25.8% 40.2%
Crude Fat 17.1% 23.9%
Crude Fiber 3.4% 5.6%

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.

Wellness dry dog foods clearly provides more protein than Hill's Science Diet. In fact, the difference between the protein content is roughly 8.04%, which is a significant amount. Similarly, Wellness wet dog foods provide significantly more protein than Hill's Science Diet wet foods.


Crude Fat Comparison For Dog Food

Dietary fats serves a multitude of roles in the proper development and function of our canine companions. Here are some of the benefits (not exhaustive):

  • Help produce prostaglandins, which reduce inflammation among other critical functions.
  • Aid in the absorption of fat-soluble vitamins
  • Improve skin and coat health
  • Improve the palatially of your dog's food

Both brands provide roughly the same amount of crude fat. For wet dog foods, Wellness provides more fat (about 6.79% more).


As you can see, Hill's Science Diet and Wellness guarantee a similar amount of crude fiber. For wet dog foods, Wellness typically provides a little more fiber (about 2.17% more).

Hill's Science Diet Cat Food vs. Wellness Cat Food

Dry Cat Food Hill's Science Diet Wellness
Crude Protein 35.2% 42.0%
Crude Fat 18.5% 16.0%
Crude Fiber 5.8% 4.9%
Wet/Canned Cat Food Hill's Science Diet Wellness
Crude Protein 38.5% 44.6%
Crude Fat 22.0% 23.6%
Crude Fiber 4.4% 5.7%

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.

Hill's Science Diet dry recipes contain 6.74% less protein than Wellness dry recipes. This difference in protein content is a notable difference between Wellness and Hill's Science Diet. In addition, Wellness wet cat foods also provide more protein than Hill's Science Diet wet foods.


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):

  • Aid in the digestion and absorption of fat-soluble vitamins
  • Improve the health of skin/coat
  • Slow the growth of yeast infections
  • Slow the development and spread of certain type of cancers.
  • Maintain healthy blood pressure

According to our average data, Wellness typically provides less fat than Hill's Science Diet. However, this difference is relatively small and doesn't represent a significant difference between the two brands. For wet cat foods, Wellness and Hill's Science Diet provide roughly the same amount of fat.


Wellness and Hill's Science Diet both provide roughly the same amount of crude fiber. With regards to wet cat food, Wellness and Hill's Science Diet also provide roughly the same amount of crude fiber.

Hill's Science Diet Pet Food Ingredients vs. Wellness Pet Food Ingredients

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

Pea Protein
Brewers Rice
Caramel Color
Tomato Pomace
Dried Tomato Pomace

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
Beef By-Products
Corn Gluten Meal
Pork By-Products
Whole Grain Corn
Whole Grain Wheat
Powdered Cellulose
Pea Protein Concentrate
Soybean Protein Isolate

Here are some of the controversial ingredients used only by Wellness.

Garlic
Canola Oil
Garlic Powder
Canola Oil (Preserved With Mixed Tocopherols)

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

Hill's Science Diet and Wellness 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 Wellness.

Menadione Sodium Bisulfite

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

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

Wellness has been recalled 5 times.

  • March 18, 2017: elevated beef throid hormone
  • Feb. 10, 2017: foreign material
  • Oct. 30, 2012: High Moisture
  • May 4, 2012: Salmonella
  • Feb. 28, 2011: Low Levels of Thiamine (Vitamin B1)

Price Comparison: Which Brand Is More Expensive?

Dry Dog Food Hill's Science Diet Wellness
Per Pound $1.92 $4.35
Per Calorie $0.0012 $0.0027
Dry Cat Food Hill's Science Diet Wellness
Per Pound $2.80 $4.69
Per Calorie $0.0017 $0.0028
Wet Dog Food Hill's Science Diet Wellness
Per Pound $3.04 $5.51
Per Calorie $0.0074 $0.0129
Wet Cat Food Hill's Science Diet Wellness
Per Pound $4.37 $6.29
Per Calorie $0.0085 $0.0166

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 Wellness, 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 Wellness 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 Wellness. 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 Hill's Science Diet Pet Foods

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








Where To Buy Wellness Pet Foods

You can purchase Wellness pet food products from these retailers:










Type Of Pet Foods Available

Product Hill's Science Diet Wellness
Dry Dog Food 32 Recipes 51 Recipes
Wet Dog Food 30 Recipes 62 Recipes
Dog Treats 15 Treats 30 Treats
Dry Cat Food 18 Recipes 16 Recipes
Wet Cat Food 39 Recipes 65 Recipes
Cat Treats 6 Treats

Compare Pet Food Prices Across Multiple Pet Stores

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