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Open Farm vs Kirkland Signature

Open Farm vs. Kirkland Signature

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

Guaranteed Analysis: Kirkland Signature vs. Open Farm

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.

Open Farm Dog Food vs. Kirkland Signature Dog Food

Dry Dog Food Open Farm Kirkland Signature
Crude Protein 34.3% 27.5%
Crude Fat 21.0% 15.3%
Crude Fiber 4.8% 5.4%
Wet/Canned Dog Food Open Farm Kirkland Signature
Crude Protein 40.7% 44.4%
Crude Fat 31.3% 27.8%
Crude Fiber 9.7% 5.6%

Crude Protein Comparison For Dog Food

Dogs require twenty-two amino acids to sustain life. Twelve of these amino acids are synthesized naturally, the remaining ten are consumed. Protein is the nutrient which provides some or all of these ten essential amino acids.

The table shows that Kirkland Signature provides far less protein than Open Farm. The difference in protein content is roughly 6.81%. For wet dog foods, Kirkland Signature typically provides a little more protein (about 3.73% more).


Crude Fat Comparison For Dog Food

Like protein, fats are an essential part of a dog's body. Fats are needed for the proper development and function of the canine body.

Our analysis shows that Open Farm guarantees 5.75% more fat than Kirkland Signature dry dog food recipes. For wet dog foods, Open Farm typically provides a little more fat (about 3.56% more).


As you can see, Open Farm and Kirkland Signature guarantee a similar amount of crude fiber. For wet dog foods, Open Farm provides more fiber (about 4.17% more).

Open Farm Cat Food vs. Kirkland Signature Cat Food

Dry Cat Food Open Farm Kirkland Signature
Crude Protein 41.1% 34.8%
Crude Fat 20% 15.9%
Crude Fiber 3.3% 5.9%

Crude Protein Comparison For Cat Food

Cats require twenty-two amino acids to sustain life. Eleven of these amino acids are synthesized naturally, the remaining eleven are consumed. Protein is the nutrient which provides some or all of these eleven essential amino acids.

There is a relatively large difference between the protein content of Open Farm and Kirkland Signature. On average, Kirkland Signature dry cat food recipes contain 6.30% less protein than Open Farm recipes.


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):

  • Help transport nutrients across cell membranes
  • Fats produce metabolites, which help control inflammation
  • Maintain healthy blood pressure
  • Slow the growth of yeast infections
  • Fats improve the taste/texture of food.

Kirkland Signature dry recipes contain 4.07% less fat than Open Farm dry recipes. This difference in fat content is a notable difference between Open Farm and Kirkland Signature.


If you look at the average percentages of crude fiber, you'll notice that Kirkland Signature typically guarantees 2.59% more fiber. This is a fairly small difference between Kirkland Signature and Open Farm, but still worth mentioning.

Open Farm Pet Food Ingredients vs. Kirkland Signature Pet Food Ingredients

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

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

Product Safety: Recall History of Open Farm & Kirkland Signature?

According to our records, neither brand has issued any product recalls. Therefore, consumers have no reason to question the safety of Open Farm 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 Open Farm Pet Foods

You can purchase Open Farm pet foods from the following stores:


46 Recipes In-Stock Today

8 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

Product Open Farm Kirkland Signature
Dry Dog Food 16 Recipes 12 Recipes
Wet Dog Food 8 Recipes 1 Recipes
Dog Treats 5 Treats
Dry Cat Food 4 Recipes 3 Recipes
Wet Cat Food 6 Recipes
Cat Treats

Compare Pet Food Prices Across Multiple Pet Stores