10 Best Costco Brand Dog Foods 2025 in the United States

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 Exclusive Signature Chicken & Brown Rice Comfort Care Adult Dog Food stands out for its high-quality protein, making chicken its first ingredient. This supports health by helping with lean muscle development, a strong immune system, and healthy bones. The Comfort Care Digestive Health Support System is another key feature, enhancing digestive health with fiber and prebiotics which can be essential for sensitive stomachs.

The diet is also enriched with antioxidants from sources like blueberries and cranberries, aiding in immune support, and includes glucosamine and chondroitin for joint health, which is beneficial for active or older dogs prone to joint issues. Additionally, this formula is free from corn, wheat, soy, artificial colors, and preservatives, catering to pet owners looking for a cleaner ingredient list free of common allergens and unnecessary additives.

This dog food could be a great option for adults dogs of all breeds, particularly those with digestive sensitivities or joint concerns.

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.