Diamond vs NutriSource

Diamond vs. NutriSource

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

Guaranteed Analysis: NutriSource vs. Diamond

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.

Diamond Dog Food vs. NutriSource Dog Food

Dry Dog Food Diamond NutriSource
Crude Protein 28.3% 29.5%
Crude Fat 17.1% 16.9%
Crude Fiber 4.7% 7.1%
Wet/Canned Dog Food Diamond NutriSource
Crude Protein 43.9% 44.7%
Crude Fat 27.3% 34.1%
Crude Fiber 4.5% 6.8%

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.

Diamond and NutriSource both provide roughly the same amount of crude protein. With regards to wet dog food, NutriSource and Diamond also provide roughly the same amount of crude protein.


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. For wet dog foods, NutriSource provides more fat (about 6.82% more).


According to our data, NutriSource guarantees 2.38% more fiber than Diamond. Although this difference is relatively small, it's still a notable difference. In addition, NutriSource wet dog foods also provide more fiber than Diamond wet foods.

Diamond Cat Food vs. NutriSource Cat Food

Dry Cat Food Diamond NutriSource
Crude Protein 37.8% 36.7%
Crude Fat 19.7% 17.6%
Crude Fiber 4.7% 8.2%
Wet/Canned Cat Food Diamond NutriSource
Crude Protein 44.7% 46.6%
Crude Fat 22.0% 33.4%
Crude Fiber 6.1% 5.0%

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.

Both brands provide roughly the same amount of crude protein. With regards to wet cat food, NutriSource and Diamond also provide roughly the same amount of crude protein.


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 small difference between the fat content of Diamond and NutriSource. We can see that Diamond guarantees about 2.17% more fat than NutriSource. In addition, NutriSource wet cat foods also provide more fat than Diamond wet foods.


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

Diamond Pet Food Ingredients vs. NutriSource Pet Food Ingredients

Diamond and NutriSource both use the following controversial ingredients in many of their products:

Pea Protein
Brewers Rice

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

Meat Meal
Ground Corn
Tomato Pomace
Beef By-Products
Corn Gluten Meal
Powdered Cellulose
Chicken By-Product Meal
Ground Whole Grain Corn
Poultry By-Product Meal
Canola Oil (Preserved With Mixed Tocopherols)

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

White Rice
Dried Tomato Pomace

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

Here are some of the harmful ingredients used only by Diamond.

Menadione Sodium Bisulfite

Here are some of the harmful ingredients used only by NutriSource.

Menadione Sodium Bisulfite Complex

Product Safety: Recall History of Diamond & NutriSource?

Diamond has been recalled once.

  • March 10, 2013: low level of thiamine (Vitamin B1)

According to our records, NutriSource has never been recalled.

Price Comparison: Which Brand Is More Expensive?

Dry Dog Food Diamond NutriSource
Per Pound $1.15 $2.15
Per Calorie $0.0007 $0.0012
Dry Cat Food Diamond NutriSource
Per Pound $1.26 $2.36
Per Calorie $0.0007 $0.0013
Wet Dog Food Diamond NutriSource
Per Pound $2.10 $2.84
Per Calorie $0.0036 $0.0054
Wet Cat Food Diamond NutriSource
Per Pound $3.16 $4.82
Per Calorie $0.0060 $0.0096

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 Diamond or NutriSource, 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 Diamond or NutriSource will depend on your shopping habits.

Pet owners who use our price comparison feature typically save more than 25% off retail prices for Diamond and NutriSource. 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 Diamond Pet Foods

You can purchase Diamond pet foods from the following stores:






Where To Buy NutriSource Pet Foods

You can purchase NutriSource pet food products from these retailers:







Type Of Pet Foods Available

Product Diamond NutriSource
Dry Dog Food 21 Recipes 29 Recipes
Wet Dog Food 3 Recipes 12 Recipes
Dog Treats 6 Treats 9 Treats
Dry Cat Food 4 Recipes 5 Recipes
Wet Cat Food 3 Recipes 14 Recipes
Cat Treats

Compare Pet Food Prices Across Multiple Pet Stores

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