Natural Signature Salmon & Flaxseed Formula
Natural Signature Salmon & Flaxseed Formula scores 4.5/5 on Moesonson's label-based analysis. Its strongest factor is protein clarity (high — 100% of the recipe's protein panel is clearly named); its weakest is animal-protein content (strong — 99% of the weighted protein comes from animal sources).
Rating
Updated Jul 2026
How this score is made
This score isn’t a hand-wavy impression: it reads what the label actually prints — the ingredient list, guaranteed analysis and AAFCO adequacy statement — and runs it through the same algorithmic rubric as every other product. No brand pays for placement, and there are no affiliate links on reviewed products.
Is Natural Signature Salmon & Flaxseed Formula dry cat food good?
Natural Signature Salmon & Flaxseed Formula is a dry cat food rated 4.5 stars, with high ingredient transparency and strong animal protein content. The recipe lists most animal ingredients by name and features real muscle meat as a primary protein source. However, most minerals are supplied in inorganic forms that may be less well absorbed. This recipe is free from Dairy, Egg, Legumes, Nuts, Red meat, Shellfish, Unknown Meal but contains Gluten grains, Poultry, Fish.
Allergy Highlights
Contains:
Free From:
Pros
- Uses clearly named animal protein sources for better transparency.
- Includes plant ingredients that can provide fiber and natural antioxidants.
Cons
- Relies mostly on inorganic mineral supplements, which may be less bioavailable.
Nutrition Breakdown
| Protein | 38% |
|---|---|
| Fat | 14% |
| Est. Carbs | 28% |
| Fiber | 7% |
| Ash | 14% |
Moisture (11%) removed so you can compare foods fairly.
Dry matter basis = label value ÷ (100% − moisture%). Carbs estimated from remaining.
| Protein | 34% |
|---|---|
| Fat | 12% |
| Est. Carbs | 25% |
| Fiber | 6% |
| Moisture | 11% |
| Ash | 12% |
As-fed values are the raw percentages printed on the product label.
Tips
- Protein is Medium (38% dry matter) on our label-based comparison range. Cats usually benefit from higher protein than dogs, so confirm the food is complete for cats and fits the cat's life stage.
- Fat is Medium (14% dry matter) on our label-based comparison range. This is a moderate energy-density signal for many cats, but total calories and body condition still matter.
Ingredients Analysis
48 of 48 matched
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1 Salmon Meal
Animal ProteinDescription
The dehydrated form of salmon, a meat concentrate that could contain up to 400% more protein compared to fresh meat. It is one of the most nutrient-dense fish, high in protein, packed with omega 3s, B vitamins, and it is a good source of potassium selenium, and antioxidants.
Why Prefer?
A high-quality animal protein with high digestibility and biological value.
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2 Chicken Meal
Animal ProteinDescription
A dehydrated form of chicken, it is a meat concentrate that contains up to 4 times more protein than fresh chicken on dry matter basis.
Why Prefer?
A high-quality animal protein with high digestibility and biological value.
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3 Organic Corn
CarbsDescription
Organically grown corn, a source of carbohydrates.
Why Concerned?
A controversial filler with limited nutrition value to dogs / cats.
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4 Chicken Fat
FatDescription
The fatty layer separated during the cooking process, with a high level of omega 6, It is more preferable by dogs and cats over other types of fats.
Why Prefer?
A high-quality animal fat with high digestibility and biological value.
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5 Organic Brown Rice
CarbsDescription
Whole grain rice with its bran and germ remained, high in carbs and fiber. Studies have shown that rice bran depletes taurine in cats, which is an essential amino acid.
Why Concerned?
A common filler without gluten, with limited nutrition value to dogs / cats.
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6 Natural Flavor
Food AdditiveDescription
Made of extracts from plant or animal sources to improve the taste of food.
Why Concerned?
Contrary to its name, natural flavors are highly processed and contain many chemical additives.
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7 Organic White Rice
CarbsDescription
Organic polished white rice, a highly digestible carbohydrate source.
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8 Organic Oats
CarbsDescription
A whole grain that has higher protein and fats compared to other types. It is rich in B-vitamins and dietary fiber.
Why Concerned?
An inexpensive filler without gluten, with limited nutrition value to dogs / cats.
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9 Organic Sunflower Meal
FatDescription
An An excellent source of vitamin E and selenium, and various antioxidants such as phenolic acids and flavonoids.
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10 Organic Barley
CarbsDescription
A type of grain that is high in carbs and fiber, along with manganese and selenium.
Why Concerned?
An inexpensive filler with gluten, with limited nutrition value to dogs / cats.
Allergen Concern
Contains gluten, which is one of the most common allergens that can cause skin rashes, itchiness, and irritation.
Digestion Concern
Gluten intolerances can cause damage to the gastrointestinal tract, may result in diarrhea and discomfort stomach.
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11 Organic Rice
CarbsDescription
Without its bran and germ (the main source of nutrients), white rice is considered as "empty carbs".
Why Concerned?
A common filler without gluten, with limited nutrition value to dogs / cats.
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12 Organic Beet Pulp
CarbsDescription
Organic beet pulp, a source of fiber commonly used in pet foods.
Why Concerned?
Controversial - Some say it is a good dietary fiber source, some believe it is just an inexpensive filler.
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13 Cellulose
CarbsDescription
The substance provides strength and rigidity to plants, which are mostly made of insoluble fiber. It is commonly added to pet foods to reduce the calorie content for the "weight management" type.
Why Notice?
Unspecified plant products made of unknown sources. Its quality is highly concerned, often seen in low quality pet foods.
Digestion Concern
Dogs and cats lack the enzymes capable of digesting cellulose. A high level of fiber could interfere with the digestion of protein and other minerals.
Uncertain/Risky
Could be made up of cheap and unwanted fiber by-products. However, from our research, most cellulose used in pet food is made up of pine trees.
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14 Organic Flaxseed
FatDescription
One of the richest sources of plant-based omega 3s, well known for its anti-inflammatory properties. It contains around 41% of fat, 57% of the total fatty acids is omega 3s.
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15 Organic Sesame Meal
Plant ProteinDescription
The meal remaining after oil extraction from organic sesame seeds, high in protein and fiber.
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16 Choline Chloride
SupplementDescription
Vital molecule for various functions in the body, lack of choline can result in weight loss, vomiting, and fatty liver.
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17 Calcium Carbonate
SupplementDescription
An inorganic form of calcium, it is essential in the formation of bones / teeth and different cellular functions. Compare to organic form, it has 5 - 15% less absorption rate to the body.
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18 Potassium Chloride
SupplementDescription
An inorganic form of potassium, which offers 5 - 15% less absorption rate to the body. It is essential for important functions like nerve impulse transmission, muscle contraction, and carbon dioxide / oxygen transport.
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19 Methionine
SupplementDescription
Added to balance the amino acids profile of pet foods with limited amounts of meat protein. Meat / fish naturally contains methionine, which does not require extra supplements. It is sometimes used to help support urine acidification.
Why Concerned?
A safe supplement to improve the completeness of essential amino acids profile (the building block of protein). However, it could imply the lack of meat protein - usually in lower quality pet foods.
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20 Lysine
SupplementDescription
One of the essential amino acids that dogs and cats cannot produce by themselves therefore must be obtained from the diet. Usually, pet foods with a high amount of meat and legumes do not require this supplement as they are high in lysine naturally.
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21 Organic Kelp
CarbsDescription
Organically grown kelp, a natural source of iodine and trace minerals.
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22 Organic Blueberry
CarbsDescription
Organically grown blueberries, rich in antioxidants.
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23 Organic Cabbage
CarbsDescription
Rich in vitamin B6, C, folate and contains powerful antioxidants, including polyphenols and sulfur compounds.
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24 Salt
OthersDescription
Mainly added to enhance the flavor, might cause kidney and blood pressure issues in a larger dose. High-quality pet foods should get a sufficient amount from raw meat, additional salt is not necessary.
Why Concerned?
A controversial ingredient that might cause health issues, unnecessary for the risk.
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25 Organic Broccoli
CarbsDescription
Organically grown broccoli, a safe treat containing vitamins and fiber.
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26 Vitamin A
SupplementDescription
Supplement of vitamin A, it is essential for healthy skin, normal vision, and immune function.
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27 Vitamin D3
SupplementDescription
Supplement for vitamin D3 (animal-derived), which is essential for calcium homeostasis - to maintain a constant concentration of calcium. A deficiency will result in osteopenia (lower bone mass).
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28 Vitamin B1
SupplementDescription
Supplement for vitamin B1, which is important for energy production and glucose metabolism.
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29 Vitamin B2
SupplementDescription
Supplement for vitamin B2, which is vital for breaking down food and absorbing nutrients. A deficiency will result in symptoms like anorexia and weight loss.
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30 Vitamin B Complex
SupplementDescription
Vitamin B complex is composed of 8 B vitamins: B1, B2, B3, B5, B6, B7, B9, and B12, which are important for maintaining a healthy body. In pet food, it is a common supplement.
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31 Pantothenic Acid
SupplementDescription
A water-soluble dietary supplement for vitamin B5, which is essential for energy metabolism in the body.
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32 Vitamin B6
SupplementDescription
Supplement for vitamin B6, which is vital for producing glucose, red blood cells, and synthesis of niacin, taurine, dopamine. A deficiency will result in symptoms like anemia, seizures, and heart-related issues.
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33 Folic Acid
SupplementDescription
A synthetic form of folate, which is also known as vitamin B9. It plays an important role to support the body's functions, such as cell growth.
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34 Biotin
SupplementDescription
A water-soluble vitamin B that is important for maintaining healthy skin, coat, and nails.
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35 Vitamin B12
SupplementDescription
Supplement for vitamin B12, which is vital for carbon transfer and propionate metabolism. A deficiency will result in symptoms similar to gastrointestinal disorders, such as diarrhea and weight loss.
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36 Copper
SupplementDescription
An inorganic form of copper, which is important for the production of blood cells, hair coat color pigmentation, and maintaining the nervous system. Compare to organic form, it has 5 - 15% less absorption rate to the body.
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37 Iron
SupplementDescription
An inorganic form of iron. It is essential for the transport and movement of oxygen around the body. Compare to organic form, it has 5 - 15% less absorption rate to the body.
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38 Zinc
SupplementDescription
An inorganic form of zinc, which is vital in skin function and wound healing, cell replication, the structure and function of biological membranes. Compare to organic form, it has 5 - 15% less absorption rate to the body.
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39 Phosphorus
SupplementDescription
An inorganic form of phosphate, has 5 - 15% less absorption rate compared to the organic form. Phosphorus is essential for various body functions, especially critical to maintain normal metabolism.
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40 Magnesium
SupplementDescription
An inorganic form of manganese that has 5 - 15% less absorption rate than the organic form. It is essential for the transport and movement of oxygen around the body.
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41 Manganese
SupplementDescription
An inorganic form of manganese that has 5 - 15% less absorption rate than the organic form. It is essential for the transport and movement of oxygen around the body.
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42 Calcium
SupplementDescription
An inorganic form of calcium, it is essential in the formation of bones / teeth and different cellular functions. Compare to organic form, it has 5 - 15% less absorption rate to the body.
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43 Salmon Oil
FatDescription
The oil extracted from salmon, an excellent source of fat and omega 3s, which is important to reduce inflammation in the body.
Why Prefer?
A high-quality animal fat with high digestibility and biological value.
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44 Sodium Bisulfate
Food AdditiveDescription
A chemical mixture classified as a corrosive sterilizer, often used to control contamination of Salmonella.
Why Notice?
A food additive that might cause health issues.
Uncertain/Risky
It was banned from use on fruits and vegetables in the US. It could cause irritation in the mouth, diarrhea, and vomitting.
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45 Organic Flaxseed
FatDescription
One of the richest sources of plant-based omega 3s, well known for its anti-inflammatory properties. It contains around 41% of fat, 57% of the total fatty acids is omega 3s.
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46 Tocopherols
(Detected): Tocopherol
Food AdditiveDescription
A form of vitamin E, a powerful antioxidant used as a natural preservative.
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47 Rosemary Extract
CarbsDescription
A common herb used for cooking, it is rich in antioxidants to fight off radical damages in the body.
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48 Vitamin E
SupplementDescription
Supplement for vitamin E, which is an important antioxidant that protects oxidative damages on cellular membranes by free radicals. A deficiency will result in symptoms like anorexia, depression, and dermatitis.
Tips
- Named animal proteins near the top: Salmon Meal, Chicken Meal are listed early in the ingredient panel.
- Higher-priority ingredients to review: Cellulose, Sodium Bisulfate.
- Higher-caution ingredients: Cellulose, Sodium Bisulfate have caution notes in the ingredient database.
- Possible allergy triggers: Organic Barley have allergen notes; review them if your pet has sensitivities.
- Possible digestion triggers: Organic Barley, Cellulose have digestion notes; watch tolerance if your pet has a sensitive stomach.
Protein Analysis
How this recipe earned its protein scores.
Protein Clarity
High- Named 100%
Strong clarity: 100% of Natural Signature Salmon & Flaxseed Formula's animal-protein ingredients are clearly named (like chicken or salmon). Only 0% use vague terms such as "meat meal" and 0% are by-products. Named protein ingredients let you verify the source and check for allergens.
Contributing ingredients
Named
Animal Protein
High- Animal 99%
- Plant 1%
Meat-forward: 99% of the weighted protein in Natural Signature Salmon & Flaxseed Formula comes from animal sources. Plant signals are modest (1% whole plants, 0% plant concentrates), so the protein profile leans on real meat.
Contributing ingredients
Animal
Plant
Natural Signature Salmon & Flaxseed Formula dry cat food Review
Natural Signature Salmon & Flaxseed Formula is a strong choice — rated 4.5 stars with high ingredient transparency and strong animal protein content. A confident pick when the ingredient panel matches your pet's needs.
Best for
- Owners who want clearly named protein sources
- Pets that thrive on muscle-meat protein
Avoid if
- Your pet has a grain or gluten sensitivity
Key takeaways
- Named animal proteins make up 100% of the recipe's protein panel — a clear sourcing win.
- Contains common allergens: Gluten grains, Poultry, Fish.
- On a dry-matter basis: 38% protein, 14% fat, 28% estimated carbohydrates.
- 99% of the weighted protein comes from animal sources.
- Free from Dairy, Egg, Legumes, Nuts, Red meat, Shellfish, Unknown Meal.
Frequently asked questions
Is Natural Signature Salmon & Flaxseed Formula good for cats?
Yes — Natural Signature Salmon & Flaxseed Formula earns 4.5 out of 5 stars on Moesonson’s label-based analysis, combining high ingredient transparency with strong animal protein content. The score is computed from the printed ingredient list and guaranteed analysis rather than marketing claims — a confident pick when the label matches your cat’s needs.
Does Natural Signature Salmon & Flaxseed Formula contain Dairy?
No — based on the printed ingredient list, Natural Signature Salmon & Flaxseed Formula does not include Dairy or closely related ingredients, so pets sensitive to Dairy can typically avoid that trigger here. Recipes do get reformulated, though, so re-check the packaging before feeding — Moesonson’s reading reflects the label at analysis time.
Does Natural Signature Salmon & Flaxseed Formula contain Egg?
No — based on the printed ingredient list, Natural Signature Salmon & Flaxseed Formula does not include Egg or closely related ingredients, so pets sensitive to Egg can typically avoid that trigger here. Recipes do get reformulated, though, so re-check the packaging before feeding — Moesonson’s reading reflects the label at analysis time.
Does Natural Signature Salmon & Flaxseed Formula contain Legumes?
No — based on the printed ingredient list, Natural Signature Salmon & Flaxseed Formula does not include Legumes or closely related ingredients, so pets sensitive to Legumes can typically avoid that trigger here. Recipes do get reformulated, though, so re-check the packaging before feeding — Moesonson’s reading reflects the label at analysis time.
Does Natural Signature Salmon & Flaxseed Formula contain Nuts?
No — based on the printed ingredient list, Natural Signature Salmon & Flaxseed Formula does not include Nuts or closely related ingredients, so pets sensitive to Nuts can typically avoid that trigger here. Recipes do get reformulated, though, so re-check the packaging before feeding — Moesonson’s reading reflects the label at analysis time.
Is Natural Signature Salmon & Flaxseed Formula grain-free?
No — Natural Signature Salmon & Flaxseed Formula is not grain-free: the printed ingredient list includes Gluten grains. That mainly matters for pets with a diagnosed grain sensitivity or allergy; most cats tolerate grains well as an energy source. If your cat must avoid grains, choose a recipe without these ingredients.
What are the main protein sources in Natural Signature Salmon & Flaxseed Formula?
The main animal proteins in Natural Signature Salmon & Flaxseed Formula are Salmon Meal, Chicken Meal. Each is named by species on the printed ingredient list — a protein-clarity strength in Moesonson’s scoring, because named sources let you verify what your cat is eating and avoid specific proteins when managing food allergies.
