Kirkland Cat Food Review: Premium Quality, Affordable Cat Food

Costco’s Kirkland has been a household name for almost every product under the sun. From liquor to vitamins to mattresses, if you use it, there is probably a Kirkland version of it at Costco. Pet products are no exception.

The brand has pet beds, treats, and other supplies. But is their cat food the one for your kitty? To help you decide, we have created this comprehensive 2025 Kirkland cat food review.

Kirkland’s cat foods are manufactured for the brand by Diamond Pet Food. Diamond has their own brand of pet food products but also produces food for other brands such as Chicken Soup for the Soul and Taste of the Wild. All of Diamond’s manufacturing facilities are in the United States.

Kirkland has three kinds of dry cat food: Kirkland Signature Maintenance Cat Chicken & Rice Formula, Kirkland Signature Healthy Weight Indoor Adult Cat Formula, and Kirkland Signature Nature’s Domain. The brand does not offer wet cat foods at this time.

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Kirkland Cat Food Reviews

1. Maintenance Cat Chicken and Rice Formula

First 5 ingredients: Chicken, Chicken Meal, Whole Grain Brown Rice, Ground White Rice, Chicken Fat

WHY YOU SHOULD BUY

Kirkland Signature Chicken and Rice

Made to be highly digestible, this kibble is crafted using fresh chicken. It has guaranteed levels of vitamin E, selenium, and zinc to help support your cat’s overall health.

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This is a dry food specially formulated for the nutritional needs of adult cats. Designed to be highly digestible, this cat food is made with fresh chicken. Chicken is also the first of its ingredients.

This chicken and rice cat food is enriched with antioxidants. It has guaranteed levels of vitamin E, selenium, and zinc to help support your cat’s overall health. Omega fatty acids are included in this Kirkland cat food for skin and coat health.

Probiotics and natural prebiotic fiber ingredients from the root of dried chicory help preserve the right balance of beneficial bacteria in the intestines of your cat. These probiotics in this cat food product are formulated according to strict human-grade standards.

2. Nature’s Domain Salmon Meal and Sweet Potato Recipe

First 5 ingredients: Salmon Meal, Ocean Fish Meal, Sweet Potatoes, Peas, Potatoes

WHY YOU SHOULD BUY

Kirkland Signature Nature's Domain Cat Food

This cat food is rich in Omega fatty acids due to its main component: Salmon. It supports skin and coat health and to boost your cat’s immune system.

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This is a grain-free cat food formulated for kitties of all life stages. Made of salmon meal and ocean fish meal, it provides high quality proteins for lean, healthy muscles.

Salmon is naturally rich in omega fatty acids. It has omega-3 and omega-6 fatty acids to support skin and coat health, and to boost your cat’s immune system.

This cat food does not have wheat, corn or soy that could trigger some allergic reactions in sensitive cats. It is free from artificial enhancers such as flavors, colors or preservatives.

This salmon meal and sweet potato cat food includes guaranteed probiotics for healthy digestion.

Probiotics and natural prebiotic fiber from dried chicory root is added to help maintain the balance of good bacteria in cats’ intestines. Each serving of this cat food provides live, active cultures to support good digestion.

Nature’s Domain cat food has nutritious plant ingredients such as sweet potatoes, tomatoes, blueberries and raspberries. They provide vitamins and antioxidants for overall and immune system health.

3. Healthy Weight Cat Food

First 5 ingredients: Chicken Meal, Ground White Rice, Peas, Powdered Cellulose (source of fiber), Potato Protein

WHY YOU SHOULD BUY

Kirkland Signature Healthy Weight Cat Food

This is nutritionally balanced and with L-carnitine to help them achieve a leaner body. It has a unique blend of fiber ingredients to help prevent hairballs and support healthy digestion.

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A kibble that is specially formulated for the unique needs of indoor kitties. It is nutritionally balanced to help them achieve a leaner body condition.

The first of its ingredients is chicken meal. This product has a blend of fiber ingredients to help prevent hairballs and support healthy digestion.

Probiotics and natural prebiotic fiber ingredients from dried chicory root help maintain the balance of beneficial flora in your cat’s intestines.

One kilogram of Healthy Weight cat food has 220 million live cultures to ensure healthy digestion. Good digestion helps the body absorb more nutrients.

L-carnitine is added to the ingredients of this Indoor Adult Cat product to help turn fat into energy. One cup of this cat food has only 285 calories.

According to Costco’s website, this product could help cats return to their optimal weight range in just 6 weeks if fed properly.

Takeaway

Kirkland Signature cat foods have surprised many cat owners with the quality of its ingredients. Some who were purchasing premium brands have discovered that Kirkland’s cat foods are actually comparable to the more expensive ones.

The cats love the taste of their Kirkland dry cat foods. The kibble size is just right for most cats to pick up in their mouths and chew. They love the flavor and get excited for mealtimes.

All three variants of Kirkland cat food have high quality animal proteins as the first ingredient. This not only gives a richer flavor to the kibbles, but also provide more protein to help build healthy muscles. No by-products are used on all three variants of pet food. Grains such as corn, wheat, or soy are also not used. They are all free from artificial enhancers as well. The plant-based ingredients are rice, peas, potatoes, sweet potatoes, berries, and others.

The brand’s cat foods have also delivered excellent results to many cats. Maintenance Cat food has been credited with some cats’ longevity and good overall health. Nature’s Domain has helped cats with grain sensitivities improve their skin and coat conditions. Healthy Weight has helped indoor kitties shed excess pounds and reduce hairballs.

Based on quality of ingredients, results delivered, reviews, and affordability, Kirkland Signature is overall a great cat food brand. Generations of cats have grown up on their food and many of them lived long healthy lives. The products are affordable, yet do not contain questionable artificial ingredients or by-products. Definitely worth the Costco membership for many cat parents.