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Blackwood vs Kirkland Signature

Blackwood vs. Kirkland Signature

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

Guaranteed Analysis: Kirkland Signature vs. Blackwood

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.

Blackwood Dog Food vs. Kirkland Signature Dog Food

Dry Dog FoodBlackwoodKirkland Signature
Crude Protein27.8%27.5%
Crude Fat15.3%15.3%
Crude Fiber4.1%5.4%
Wet/Canned Dog FoodBlackwoodKirkland Signature
Crude Protein43.2%44.4%
Crude Fat39.8%27.8%
Crude Fiber6.8%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.

Both brands provide roughly the same amount of crude protein. With regards to wet dog food, Kirkland Signature and Blackwood also provide roughly the same amount of crude 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

As you can see, Blackwood and Kirkland Signature guarantee a similar amount of crude fat. For wet dog foods, Blackwood provides significantly more fat (about 11.99% more).


Blackwood and Kirkland Signature both provide roughly the same amount of crude fiber. With regards to wet dog food, Blackwood and Kirkland Signature also provide roughly the same amount of crude fiber.

Blackwood Cat Food vs. Kirkland Signature Cat Food

Dry Cat FoodBlackwoodKirkland Signature
Crude Protein40.5%34.8%
Crude Fat18.3%15.9%
Crude Fiber3.8%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.

Kirkland Signature dry recipes contain 5.68% less protein than Blackwood dry recipes. This difference in protein content is a notable difference between Blackwood and Kirkland Signature.


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, Kirkland Signature typically provides less fat than Blackwood. However, this difference is relatively small and doesn't represent a significant difference between the two brands.


If you look at the average percentages of crude fiber, you'll notice that Kirkland Signature typically guarantees 2.14% more fiber. This is a fairly small difference between Kirkland Signature and Blackwood, but still worth mentioning.

Blackwood Pet Food Ingredients vs. Kirkland Signature Pet Food Ingredients

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

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

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

Ground Corn
Dried Tomato Pomace

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

Powdered Cellulose
Organic Canola Meal
Organic Pea Protein
Organic Canola Oil (Preserved With Mixed Tocopherols)

Product Safety: Recall History of Blackwood & Kirkland Signature?

According to our records, neither brand has issued any product recalls. Therefore, consumers have no reason to question the safety of Blackwood or Kirkland Signature pet food products.


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 Blackwood Pet Foods

You can purchase Blackwood pet foods from the following stores:


28 Recipes In-Stock Today

23 Recipes In-Stock Today

Where To Buy Kirkland Signature Pet Foods

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


Type Of Pet Foods Available

ProductBlackwoodKirkland Signature
Dry Dog Food13 Recipes12 Recipes
Wet Dog Food4 Recipes1 Recipes
Dog Treats7 TreatsNone
Dry Cat Food9 Recipes3 Recipes
Wet Cat Food4 RecipesNone
Cat TreatsNoneNone

Top Rated Blackwood Recipes

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Top Rated Kirkland Signature Recipes

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