Nature's Domain Small Breed Salmon & Lentil Dry Dog Food
This is a grain-free dry kibble formulated for small-breed dogs, with salmon and salmon meal as the main protein sources. Lentils, chickpeas, and peas provide most of the carbohydrates, and the recipe includes added omega fatty acids, taurine, and probiotics to support digestion and skin and coat health. It is AAFCO-formulated for all life stages, including large-breed growth, but the kibble size is tailored to small dogs.
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Strong Choice
This formula offers a salmon-based, grain-free option for dogs who do well on fish protein, with kibble sized for small mouths. It provides moderate protein and fat levels, added omega fatty acids, taurine, and multiple probiotic strains. Because it relies heavily on legumes and peas instead of grains, it is best used with some caution in breeds where heart health is a particular concern.
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.
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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
- Salmon and salmon meal as the first ingredients provide a digestible animal protein source and natural omega-3s.
- Complete and balanced to AAFCO all life stages, including large-breed growth, so it can be fed long term if appropriate.
- Includes added omega-3 and omega-6 fatty acids, which can support skin, coat, and overall health.
- Contains multiple probiotic strains and chicory root as a prebiotic to help support digestive health.
Considerations
- Lentils, chickpeas, peas, and fava beans are major ingredients, making this a legume-heavy, grain-free diet tied to DCM concerns in some dogs.
- Salmon is a common allergen for some dogs, so this may not suit pets with known fish sensitivities.
- At 413 calories per cup, it is quite calorie-dense, so careful portion control is important, especially for small 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
Salmon
Salmon is commonly used as a high-quality animal protein and rich source of omega‑3 fatty acids (EPA/DHA) in dog and cat foods, supporting skin and coat condition, joint and cognitive health, and overall muscle maintenance. While very nutritious, salmon can be an allergen for some pets and raw salmon may pose risks from parasites, thiaminase-related thiamine loss, and region-specific pathogens (e.g., salmon poisoning); owners should avoid feeding uncooked bones and consider sourcing to minimize contaminant and sustainability concerns.
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02
Salmon
Salmon is commonly used as a high-quality animal protein and rich source of omega‑3 fatty acids (EPA/DHA) in dog and cat foods, supporting skin and coat condition, joint and cognitive health, and overall muscle maintenance. While very nutritious, salmon can be an allergen for some pets and raw salmon may pose risks from parasites, thiaminase-related thiamine loss, and region-specific pathogens (e.g., salmon poisoning); owners should avoid feeding uncooked bones and consider sourcing to minimize contaminant and sustainability concerns.
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03
Lentil
Lentils are a plant-based source of protein, complex carbohydrates, fiber and micronutrients (notably folate and iron) commonly used in pet foods to add bulk, promote satiety and help moderate post-meal blood sugar. They can be a useful ingredient for dogs when properly processed and balanced with animal-derived amino acids, but lentil protein is less digestible and incomplete for obligate carnivores like cats; high legume inclusion can also increase gas or digestive upset and has been discussed in the context of diet-associated heart concerns in dogs, so lentils should be used in nutritionally complete, vetted formulations.
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04
Chickpea
Chickpeas are a legume commonly used in pet foods as a plant-based protein, source of digestible carbohydrates, and supply of soluble and insoluble fiber that helps with stool quality and satiety. They can be a useful ingredient for dogs but are not a complete protein for obligate carnivores like cats and may cause gas or digestive upset if underprocessed; additionally, high inclusion of legumes in some grain‑free diets has been discussed as a potential factor in canine dilated cardiomyopathy so diets should be balanced and any concerns discussed with your veterinarian.
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05
Pea
Pea is a plant-based ingredient used in pet foods as a source of protein, soluble and insoluble fiber, and micronutrients (often included as whole peas, pea flour, or pea protein concentrate) to boost protein content and improve texture. While peas can provide digestible carbohydrates, fiber, and some plant protein useful especially for dogs, they are not a complete protein for obligate carnivores like cats and — when overused, particularly in concentrated forms or as a major component of grain‑free diets — have been scrutinized for a possible association with canine dilated cardiomyopathy and can contribute to nutrient imbalances or excess calories, so balanced formulation and compliance with AAFCO nutritional profiles are important.
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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?
The right daily portion depends on your dog's weight, age, and activity level. Create a free account, add your dog, and get their daily calories and portion sizes.
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 Nature's Domain Small Breed Salmon & Lentil 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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