Kirkland Signature Cat Food: An In-Depth Review of Costco’s Esteemed Store Brand


Are you considering Kirkland cat food? Before you make your choice, let’s delve into this extensive review to determine if Costco’s renowned store brand offers the quality and value you desire.

Evaluating Kirkland Cat Food: Delving into Key Aspects

Here at, we have thoroughly examined Kirkland cat food, assessing its species-appropriateness, ingredient quality, product variety, price, customer experience, and recall history. Let’s see how it rates in each of these crucial areas.

We are pleased to give Kirkland cat food an impressive rating of 39 out of 60, equivalent to a B- grade.

Why You Can Trust

Before presenting facts about Kirkland Signature cat food, let’s discuss the extensive research conducted to provide you with accurate information. We have delved into Kirkland’s recall history, manufacturing processes, ingredient quality, and customer experience. Furthermore, we have personally subjected the brand to rigorous testing with our own cats, Wessie and Forest.

To gain practical insights, we purchased a bag of Kirkland Signature dry cat food and a mixed case of wet food cans at full retail price. Additionally, we sent samples of Kirkland’s Maintenance Cat formula to an independent lab for analysis. You can find the complete report here.

After conducting thorough research and testing, we are ready to provide you with the most reliable information about Kirkland Signature cat food. Let’s begin exploring this brand from the ground up.

All About Kirkland Cat Food

Introduced in 1995, Kirkland Signature is Costco’s exclusive private label brand that encompasses a diverse range of products, including a limited selection of pet foods.

Renowned as “the best store brand there ever was” by Bon Appetit, Kirkland Signature has gained a reputation for providing affordable products that rival or exceed name-brand equivalents. From their rumored rebottled Grey Goose vodka to their superb cashews and Smartwool-like socks, Kirkland Signature consistently delivers quality.

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Costco operates as a membership-only warehouse club and currently holds the position of the fifth largest retailer worldwide. With its global headquarters located in Issaquah, Washington, near Seattle, Costco boasts over 850 stores worldwide.

Sourcing and Manufacturing

While Costco sources products from various locations worldwide, Kirkland Signature cat food is made in the United States, using a combination of domestic and imported ingredients.

Diamond Pet Foods, a respected manufacturer, produces Kirkland Signature cat food in five state-of-the-art facilities across the United States. Apart from Kirkland Signature, Diamond also manufactures pet food for other renowned brands, including Taste of the Wild, 4health, and Chicken Soup for the Soul.

Kirkland Cat Food Recalls

It’s worth noting that Kirkland Signature cat food was recalled in spring 2012 due to potential salmonella contamination. However, it is crucial to mention that this incident was not exclusive to Kirkland. Diamond, the manufacturer, recalled several other brands following a salmonella outbreak within their Gaston, South Carolina, facility. As a result, the FDA conducted an investigation, revealing shortcomings in Diamond Pet Foods’ safety measures.

The Gaston facility had previously faced scrutiny from the FDA for producing dog food with excessive levels of aflatoxin. The inspection concluded that no measures were implemented to prevent aflatoxin contamination.

Despite these past events, Kirkland Signature has maintained a consistent and safe reputation. As of now, Kirkland cat food has not been recalled for over a decade.

Kirkland’s Cat Food Range

Kirkland Cat Food Review

Currently, Kirkland Signature offers a select range of dry and wet cat food products. True to Costco’s style, their dry cat foods come in bulk bags weighing 18, 20, or 25 pounds, depending on the recipe. Kirkland Signature’s wet cat food is available in 3-ounce or 3.5-ounce cans, sold in variety packs of 40 or 45 cans.

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Here are the current Kirkland Signature cat food recipes:

  • Kirkland Signature Maintenance Cat Chicken & Rice Formula Dry Food
  • Kirkland Signature Nature’s Domain Salmon & Sweet Potato Recipe Dry Food
  • Kirkland Signature Healthy Weight Indoor Adult Cat Formula Dry Food
  • Kirkland Signature Chicken Recipe Pâté Wet Cat Food
  • Kirkland Signature Turkey Recipe Pâté Wet Cat Food
  • Kirkland Signature Salmon Recipe Pâté Wet Cat Food
  • Kirkland Signature Chicken Recipe Chunks in Gravy Wet Cat Food
  • Kirkland Signature Salmon Recipe Chunks in Gravy Wet Cat Food

All Kirkland Signature cat foods prioritize animal protein as the main ingredient. The wet cat food formulas are grain-free, while the Nature’s Domain dry food recipe also excludes grains. However, Kirkland’s other two dry foods rely more heavily on rice and other carbohydrates.

Our Test Cats’ Verdict

While Kirkland cat food may have its imperfections, such as its dry recipes being low in moisture and high in carbohydrates, it remains an excellent choice compared to similarly priced alternatives like Kindfull and Pretty Please. Kirkland offers superior ingredient quality without harmful additives often found in budget foods.

As for their wet food offerings, it is still early to draw definitive conclusions since they were recently introduced. However, they appear to be on par with recognizable brands like Iams and Diamond. What sets Kirkland apart is the absence of meat by-products, corn, wheat, or soy ingredients, enhancing their overall quality compared to store brands like Aldi’s Heart to Tail.

Positive Customer Reviews

On, the popular Maintenance Cat Chicken and Rice cat food has received over 2,000 reviews, earning an impressive 4.7 out of 5-star rating. Most customers praise Kirkland cat food for its exceptional combination of affordability and quality.

Although reviews for Kirkland’s wet cat food are limited due to its recent release, customers are excited about the return of wet cat food to Kirkland Signature’s lineup in general. While we could not find specific customer comments about the products themselves, customers appreciate the value and convenience of purchasing in bulk. Several mentioned improvements in their cats’ health and reduced litter box odor.

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Negative Customer Reviews

Occasionally, negative reviews arise, with some customers claiming that various Kirkland formulas made their cats ill. However, we could not find substantial evidence to support these claims.

Another common complaint focuses on the large package sizes, particularly the 25-pound sacks of dry food. Even satisfied customers express concerns about storage space for such sizable bags.

Kirkland Signature Cat Food Pricing

If you purchase Kirkland Signature dry cat food from the Costco website or warehouse, prices can range from $0.09 to $0.13 per ounce. Kirkland wet cat food is available only in variety packs. A 45-count pack of 3.5-ounce cans of Kirkland Signature Pate costs $34.99, averaging around $0.22 per ounce. The Chunks in Gravy wet foods come in packs of 40 3-ounce cans, priced at $26.99, also around $0.22 per ounce.

Feeding a typical 10-pound cat Kirkland Signature dry food will cost between $0.16 and $0.25 per day. Opting for Kirkland Signature wet food will be slightly more expensive, ranging from $1.50 to $1.85 per day.

Kirkland cat food offers remarkable affordability, positioning it among the cheapest brands available. Its pricing is similar to that of Diamond Cat Food and Friskies.

Where Can You Find Kirkland Signature Cat Food?

As Costco’s private label brand, Kirkland Signature cat food is primarily available in Costco stores and on their website. However, keep in mind that a Costco membership is required for these options. To find a Costco warehouse near you, click here.

For those who prefer to avoid the membership process, you may find some Kirkland cat food options on Availability may vary, and these retailers may not be officially licensed by Costco.

Explore Similar Brands

Are you curious about other cat food brands similar to Kirkland Signature? Take a look at our other brand reviews:

  • Diamond Cat Food Brand Review
  • Kindfull Cat Food Review
  • American Journey Cat Food Review

Now armed with comprehensive information about Kirkland Signature cat food, you can confidently make an informed decision for your feline companion. Remember, always prioritize their health and happiness when choosing their nutrition.