10 Best Costco Brand Dog Foods 2026 in the United States

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 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.

Kirkland Signature Healthy Weight Formula dog food is designed for adult dogs that need to manage their weight. It offers a lower calorie count (275 calories per cup) to help overweight dogs slim down safely. The addition of glucosamine and chondroitin supports joint health, which is a nice bonus for dogs that might have stiffness or arthritis concerns. The food also provides antioxidants like vitamin E, selenium, and zinc, plus omega fatty acids that promote a shiny coat and strong immune system.

It’s made with chicken and vegetables, giving it a familiar and generally healthy ingredient profile, suitable for most breeds and sizes. This formula is specifically for adult dogs and focuses on weight management but does not cover special medical diets beyond joint and immune support. Kirkland Signature has a solid reputation at Costco for delivering good quality at an affordable price, and customer reviews are generally positive, averaging 4.4 out of 5 stars.

This food is a sensible choice for dog owners looking to help their pet lose weight without sacrificing essential nutrients and joint care. Those needing special diet formulations might want to consult a vet or explore additional options.