Adult Lamb, Rice & Vegetable Dry Dog Food
This is a complete and balanced dry food for adult dogs that uses lamb and lamb meal as the main protein sources, supported by egg and fish meal. Brown and white rice provide easily digestible carbohydrates, with added probiotics, omega fatty acids, and joint-support supplements. It’s designed as an everyday maintenance diet for healthy adult dogs of any size.
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Strong Choice
This lamb-based dry food is a solid all-purpose maintenance diet for healthy adult dogs. It offers moderate protein and fat levels with digestible grains and added probiotics, omega fatty acids, and joint-support ingredients. It can work well for dogs who do well on lamb and rice formulas and don’t need a specialized therapeutic diet.
Computed from 4 of 4 applicable checks. Missing data is skipped, never counted against a food.
The KibbleLab Score (1–10) is assessed from publicly available product data. Our evaluation is science-based, not marketing-based.
KibbleLab may earn an affiliate commission when you buy through a link. No one can pay for a higher score, or to change what we recommend for your pet.
At a Glance
Where these benefits come from
Benefits the manufacturer highlights in its own product marketing. KibbleLab lists them for reference and does not verify these claims.KibbleLab Review
Strengths
- Lamb and lamb meal are the first ingredients, giving a clear, named animal protein source for adult dogs.
- Uses brown and white rice as primary carbohydrates, which are generally easy for most dogs to digest.
- Includes added probiotics and chicory root to help support a healthy gut microbiome.
- Contains added glucosamine and chondroitin, which can help support joint health in adult dogs.
Considerations
- Contains lamb, egg, chicken fat, fish meal, and peas, so it is not ideal for dogs with multiple food allergies.
- Protein is at a moderate 23% minimum, which is fine for most adults but lower than some higher-protein options.
- Calories are on the higher side per cup, so portions may need careful measuring for dogs prone to weight gain.
Full Ingredient List
Ingredients and analysis reflect manufacturer data at the time of our last update and can change without notice. Always check the actual product packaging before feeding.
Ingredient filtering helps identify compatible options but is not a substitute for a veterinary elimination diet.
Top 5 Ingredients Explained
01
Lamb
Lamb is commonly used in dog and cat foods as a high-quality animal protein that supplies essential amino acids, iron and B vitamins and is often chosen for its palatability or as a “novel” protein in elimination diets. It can be higher in fat and calories than some other meats and may still cause allergic reactions in sensitive animals, so owners of overweight pets or those with food sensitivities should consult a veterinarian and use proper handling/cooking practices if feeding raw or homemade lamb.
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02
Lamb
Lamb is commonly used in dog and cat foods as a high-quality animal protein that supplies essential amino acids, iron and B vitamins and is often chosen for its palatability or as a “novel” protein in elimination diets. It can be higher in fat and calories than some other meats and may still cause allergic reactions in sensitive animals, so owners of overweight pets or those with food sensitivities should consult a veterinarian and use proper handling/cooking practices if feeding raw or homemade lamb.
View ingredient
03
Brown Rice
Brown rice is a whole-grain carbohydrate and fiber ingredient commonly used in dog and cat foods to provide digestible energy, dietary fiber, and modest amounts of B‑vitamins and minerals; it typically offers more nutrients and fiber than white rice. It’s generally well tolerated and can help with sensitive stomachs, but because it is high in carbohydrates (not a primary protein source) and can contain trace inorganic arsenic depending on sourcing, it should be included in balanced formulations and monitored in overweight or diabetic pets.
04
White Rice
White rice is a highly digestible carbohydrate commonly used in pet foods as an energy source, binder or filler and is often included in bland diets to help manage gastrointestinal upset. It supplies readily available calories but contains little protein, fat, fiber or micronutrients (so complete diets must be balanced), and should be used judiciously in overweight or diabetic pets due to its high glycemic index; prolonged exclusive feeding is not recommended.
05
Rice Bran
Rice bran, the nutrient-rich outer layer of the rice kernel, is used in pet foods as a source of dietary fiber, energy-dense fats, and micronutrients (B vitamins, vitamin E and trace minerals) and can help improve palatability and stool quality. It can be a useful ingredient for dogs (and to a lesser extent cats) but is high in oil and can go rancid unless stabilized, contains phytates that may affect mineral absorption, and can concentrate contaminants like inorganic arsenic, so it should be sourced and processed carefully and not be relied on as a primary protein for obligate carnivores.
Nutritional Breakdown
How to read As Fed versus Dry Matter
As fed shows the numbers straight off the label, water included. Dry matter removes the water so you can compare a wet food and a dry food fairly.What is calorie density
How many calories the food packs per unit. Denser foods mean smaller portions for the same calories.Not sure how much of this to feed?
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Product Details & Brand
Product Specs
AAFCO Nutritional Adequacy
What is AAFCO
Association of American Feed Control Officials. It sets the nutritional
adequacy standards US pet foods are measured against.
What is AAFCO
Association of American Feed Control Officials. It sets the nutritional adequacy standards US pet foods are measured against.Brand
Kirkland Signature is the Costco private-label brand. Its pet food range covers dry and wet dog and cat foods, including the grain-inclusive Super Premium line and the grain-free Nature's Domain line, offering premium-style formulas at value pricing. Production is outsourced to Diamond Pet Foods.
Manufacturer
Costco does not manufacture Kirkland Signature pet food itself; it controls the formulation and outsources production. Kirkland Signature dog and cat foods are manufactured by Diamond Pet Foods.
Manufacturing details are compiled from public sources and not independently verified; they may not reflect contract manufacturing or co-packing.
Recall History
No recall is listed for Kirkland Signature Adult Lamb, Rice & Vegetable Dry Dog Food.
Source: FDA animal food recall listings back to January 2019 · Checked daily, last on Aug 31, 2026
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Frequently Asked Questions
Has Kirkland Signature ever been recalled?
We have no recalls on record for Kirkland Signature. We track the FDA's animal food recall listings back to January 2019 and publish every pet food recall automatically. A filing that isn't pet food may not appear here.
How does KibbleLab rate foods?
Our scores are based on ingredient composition, nutritional profile, AAFCO compliance, and health considerations. We don't penalize by-products, grains, or synthetic preservatives. Brands cannot pay for higher scores.
Is KibbleLab a substitute for veterinary advice?
No. KibbleLab provides data-driven food analysis, not medical advice. Always consult your veterinarian before making dietary changes, especially for pets with health conditions.
KibbleLab provides informational content only. This is not veterinary advice. Always consult a qualified veterinarian before changing your pet's diet.
KibbleLab may earn affiliate commissions through product links. No one can pay for a higher score, or to change what we recommend for your pet.
Product data sourced from manufacturer websites, AAFCO statements, and FDA recall listings. Last verified dates reflect our most recent data check. We track the FDA's animal food recall listings back to January 2019 and publish every pet food recall automatically. A filing that isn't pet food may not appear here.
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