Nature's Domain Grain-Free Salmon & Sweet Potato Dry Cat Food
Verified Aug 30, 2026
A grain-free dry cat food for all life stages, this formula uses salmon, salmon meal, and fish meal as key protein sources with sweet potato, potato, and peas as the main carbohydrates. It includes added taurine, omega-3 and omega-6 fatty acids, and probiotics to support overall nutrition for kittens through adult cats.
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Strong Choice
This is a higher-protein, grain-free dry food centered around salmon and fish meals, suitable for most healthy cats at any life stage. It offers a decent balance of animal protein, added taurine, and omega fatty acids, along with probiotics for digestive support. It can work well for cats who do well on grain-free diets and tolerate fish proteins.
Computed from 4 of 4 applicable checks. Missing data is skipped, never counted against a food.
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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, salmon meal, and fish meal provide multiple sources of animal protein for essential amino acids.
- Formulated to meet AAFCO nutrient profiles for all life stages, so it can be used for kittens and adults.
- Includes added taurine plus DHA and other omega-3 and omega-6 fats to support heart, brain, and skin health.
- Contains probiotics and chicory root as a prebiotic source, which can help support healthy digestion.
Considerations
- This is a grain-free recipe that relies on peas and potatoes, which some cats do not digest as well as traditional grains.
- Fish is a common allergen in cats, so this may not be a good choice for cats with known fish sensitivities.
- The food uses peas and pea protein to boost protein, so not all of the protein comes from animal sources.
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
Fish
Fish is commonly used in pet foods as a highly digestible animal protein and an excellent source of omega‑3 fatty acids (EPA and DHA) that support skin and coat health, joint function, and cognitive development in both dogs and cats. It also supplies B vitamins and minerals but can be a common allergen, may contain environmental contaminants or mercury depending on species and sourcing, and raw fish can contain thiaminase—so choose properly processed, nutritionally balanced, and sustainably sourced fish ingredients.
04
Sweet Potato
Sweet potato is used in pet foods as a digestible carbohydrate and source of soluble fiber, vitamins (notably beta‑carotene), minerals and antioxidants, often helping with stool quality and serving as a binder or energy ingredient. It is generally well tolerated by dogs and can support gut health, but because cats poorly convert beta‑carotene to vitamin A and require preformed vitamin A from animal sources, sweet potato is not a substitute for meat-based nutrients; its relatively high carbohydrate content also means portion control is advised for overweight or diabetic pets and it should be cooked for best digestibility.
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05
Potato
Potato is commonly used in pet foods as a digestible carbohydrate source and functional binder, supplying starch, fiber, and modest amounts of vitamins (B6, C) and potassium—often included as cooked or dehydrated flakes, starch, or protein concentrates. While it provides energy and helps formulate grain‑free recipes, potatoes are not a primary protein for dogs or cats (and are not nutritionally required for obligate‑carnivore cats), can contribute to excess calories or affect blood glucose in diabetic animals, and must be cooked and free of green skins or sprouts to avoid solanine toxicity; allergies are uncommon but possible.
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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?
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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 Nature's Domain Grain-Free Salmon & Sweet Potato Dry Cat 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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