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Simply Nourish vs Kirkland Signature

Simply Nourish vs. Kirkland Signature

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

Guaranteed Analysis: Kirkland Signature vs. Simply Nourish

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.

Simply Nourish Dog Food vs. Kirkland Signature Dog Food

Dry Dog FoodSimply NourishKirkland Signature
Crude Protein31.8%27.5%
Crude Fat14.7%15.3%
Crude Fiber6.8%5.4%
Wet/Canned Dog FoodSimply NourishKirkland Signature
Crude Protein44.7%44.4%
Crude Fat21.9%27.8%
Crude Fiber7.0%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.

Kirkland Signature dry recipes contain 4.31% less protein than Simply Nourish dry recipes. This difference in protein content is a notable difference between Simply Nourish and Kirkland Signature. For wet dog foods, Simply Nourish and Kirkland Signature provide roughly the same amount of protein.


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, Kirkland Signature provides more fat (about 5.87% more).


As you can see, Kirkland Signature and Simply Nourish guarantee a similar amount of crude fiber. With regards to wet dog food, Simply Nourish and Kirkland Signature also provide roughly the same amount of crude fiber.

Simply Nourish Cat Food vs. Kirkland Signature Cat Food

Dry Cat FoodSimply NourishKirkland Signature
Crude Protein39.9%34.8%
Crude Fat16.5%15.9%
Crude Fiber6.3%5.9%

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.

The table shows that Kirkland Signature provides far less protein than Simply Nourish. The difference in protein content is roughly 5.11%.


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

Kirkland Signature and Simply Nourish both provide roughly the same amount of crude fat.


There is a relatively insignificant difference between the crude fiber content of the two brands.

Simply Nourish Pet Food Ingredients vs. Kirkland Signature Pet Food Ingredients

Simply Nourish and Kirkland Signature both use the following controversial ingredients in many of their products:

Canola Oil
Pea Protein
Tomato Pomace
Powdered Cellulose
Canola Oil (Preserved With Mixed Tocopherols)

Here are some of the controversial ingredients used only by Simply Nourish.

Pasta
Vegetable Oil

Here are some of the controversial ingredients used only by Kirkland Signature.

Organic Canola Meal
Organic Pea Protein
Organic 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.

Here are some of the harmful ingredients used only by Simply Nourish.

Menadione Sodium Bisulfite Complex

Product Safety: Recall History of Simply Nourish & Kirkland Signature?

Simply Nourish has been recalled once.

  • Aug. 13, 2021: elevated levels of vitamin D

According to our records, Kirkland Signature has never been recalled.


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 Simply Nourish Pet Foods

You can purchase Simply Nourish pet foods from the following stores:


Where To Buy Kirkland Signature Pet Foods

You can purchase Kirkland Signature pet food products from these retailers:


Type Of Pet Foods Available

ProductSimply NourishKirkland Signature
Dry Dog Food35 Recipes12 Recipes
Wet Dog Food20 Recipes1 Recipes
Dog Treats14 TreatsNone
Dry Cat Food15 Recipes3 Recipes
Wet Cat Food21 RecipesNone
Cat Treats9 TreatsNone

Top Rated Simply Nourish Recipes

Dog Food
Simply Nourish
Source Chicken & Turkey Recipe For Adult Dogs
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Dog Food
Simply Nourish
Source Turkey Recipe (Canned) For Adult Dogs
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Cat Food
Simply Nourish
Source Fish & Chicken Recipe For Indoor Adult Cats
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Cat Food
Simply Nourish
Source Venison Recipe Paté For Adult Cats
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Top Rated Kirkland Signature Recipes

Dog Food
Kirkland Signature
(Costco) Super Premium Lamb, Rice & Vegetable Formula For Adult Dogs
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Dog Food
Kirkland Signature
(Costco) Super Premium Chicken, Rice & Vegetable Formula For Puppies
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Dog Food
Kirkland Signature
(Costco) Nature's Domain Turkey & Pea Stew For Dogs
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Cat Food
Kirkland Signature
(Costco) Nature's Domain Salmon Meal & Sweet Potato Recipe Cat Food
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