10 Best Costco Brand Dog Foods 2025 in the United States

Kirkland Signature Expect More Adult Formula Chicken, Rice, and Vegetable Dog Food is designed mainly for adult large breed dogs, emphasizing coat health, digestion, immune support, joints, and balanced nutrition. It features chicken as the primary protein source, supported by rice and vegetables which provide fiber and energy.

This formula aims to meet the nutritional needs of adult dogs without special dietary restrictions like grain-free or limited ingredient. The large 40-pound bag offers great value and convenience. Kirkland, Costco’s in-house brand, is known for providing quality pet food at a reasonable price.

This dog food suits most adult large breed dogs looking for everyday balanced nutrition with good support for joint and coat health, especially for budget-conscious buyers. However, if your dog has specific food sensitivities or requires a specialized diet, this formula may not fully address those needs since it includes common ingredients like rice and chicken. Some picky eaters may have varying preferences for the rice-based flavor.

The Kirkland Signature Adult Formula Chicken, Rice and Vegetable Dog Food is designed specifically for adult dogs and features fresh chicken as its main ingredient, which is beneficial since chicken and egg proteins are easy for dogs to digest. It includes added glucosamine and chondroitin, supporting joint health, especially for dogs that might need extra care in this area. This formula also contains antioxidants like vitamin E, selenium, and zinc to help maintain a healthy immune system, along with omega-3 and omega-6 fatty acids that promote a shiny coat and overall well-being.

The food provides a balanced approach to nutrition, suited for all breed sizes, and is intended for everyday adult dogs rather than puppies or seniors. The 40-pound bag size is practical for larger households or those who want to buy in bulk from Costco. It is not specifically tailored for dogs with allergies or special medical requirements, but it offers reliable nutrition for general adult dog care.

Kirkland Signature is a well-known Costco brand with a solid reputation for quality at a good price, making this an attractive choice for dog owners who want dependable nutrition without a premium cost. If you’re looking for a straightforward, wholesome adult dog food that covers essentials like protein, joint support, and coat health, this product meets those needs effectively.

The Kirkland Signature Nature's Domain Turkey Dog Food is a solid choice for dog owners looking for a grain-free formula. One of its key strengths is that it caters to all life stages, meaning it can be fed to puppies, adults, and senior dogs, making it versatile. The inclusion of probiotics and prebiotics is beneficial for digestive and immune health, which is a plus for dogs with sensitive stomachs.

Additionally, it's supplemented with antioxidants and omega fatty acids, promoting health and vitality. The turkey flavor and high protein content make it a nutritious option for active dogs. The formula's grain-free nature might be ideal for dogs with grain allergies or sensitivities. This product is particularly recommended for active and senior dogs, as specified in its uses and age range description.

Another point to consider is the brand reputation; Kirkland, as a Costco brand, is generally well-regarded for offering good value for money. On the downside, the 35-pound bag size might be cumbersome for some pet owners to handle and store.