Nulo Organic Ancient Grains Haddock, Salmon & Acadian Redfish Recipe
Dry Extruded complete
Is Nulo Organic Ancient Grains Haddock, Salmon & Acadian Redfish Recipe a good dog food?
We score it 50/100 (Average). This reflects the ingredient quality, composition and label transparency of the recipe as declared on the label.
Why this score?
This recipe achieves an overall rating of 50 out of 100. The inclusion of ingredients without printed percentages contributed -13.1 points, and the processing format adjusted the score by -7. Conversely, the overall quality of the ingredient list added +6.7 points, while being labelled nutritionally complete contributed +1.7 points to the final evaluation.
Only part of the analytical constituents are declared, so the nutritional picture is incomplete.
100% of this recipe has no printed percentage. Estimated shares are model estimates, not label facts.
- Recipe50
- Nutritionallow97
- Transparency35
- Safety100
- Evidencelimited33
The Recipe score measures how attractive and transparent the declared ingredient list is. It is not, by itself, proof that the food is nutritionally appropriate for long-term feeding. The Nutritional and Evidence scores measure what we can verify towards that stronger claim.
Complete extruded dry food for dogs of all life stages, with haddock, salmon and salmon protein as the main ingredients.
Why you might choose it
- High in protein: 39% protein on a dry-matter basis.
- Nutritionally complete: formulated to be fed as the whole diet.
Why you might not
- High in fat: 20% fat on a dry-matter basis.
- 100% of the recipe mass has no printed percentage, so the exact split cannot be verified.
Estimated composition
Typical analysis (as fed)
- Protein
- 35%
- Fat
- 18%
- Fibre
- 4.50%
- Moisture
- 10%
- Omega-3 fatty acids
- 0.95%
- Omega-6 fatty acids
- 3%
- Calcium
- 1.20%
- Phosphorus
- 1%
Additives & feeding info
Nutritional additives
Vitamin E 150 IU/kg; Taurine 0.20%; Ascorbic Acid 65 mg/kg
Who is this food for?
Suits
- Labelled by the manufacturer for all lifestages
- Doesn't list beef, lamb, venison, pork, duck as ingredients
Consider something else if:
- Your dog avoids chicken: the label lists dried chicken protein
- Your dog avoids turkey: the label lists dehydrated turkey protein
- Your dog avoids fish: the label lists haddock
- Your dog avoids grain: the label lists oats
- You want a single-protein recipe: this one lists more than one animal protein
- You are limiting fat: 20.0% on a dry-matter basis is in the high band
These points are derived from declared ingredients and analysis, not a substitute for veterinary advice. If your dog has a diagnosed condition, food choice is a medical nutrition decision: speak to your vet. Use the homepage filter to find foods that fit your dog.
Ingredients (46)
| # | As declared | Matched | Category | Tier | Declared % | Est. % |
|---|---|---|---|---|---|---|
| 1 | Haddock | Haddock | meat | good | - | 2.9 |
| 2 | Deboned Salmon | Salmon | meat | good | - | 2.8 |
| 3 | Salmon Meal | Salmon Protein | meat | good | - | 2.8 |
| 4 | Turkey Meal | Dehydrated turkey protein | meat | good | - | 2.8 |
| 5 | Chicken Meal | Dried chicken protein | meat | good | - | 2.8 |
| 6 | Organic Oats | Oats | carb | medium | - | 2.7 |
| 7 | Organic Millet | Millet | carb | good | - | 2.7 |
| 8 | Chicken Fat | Chicken Oil and Fat | oil | good | - | 2.7 |
| 9 | Organic Barley | Barley | carb | medium | - | 2.6 |
| 10 | Acadian Redfish | Acadian redfish | meat | good | - | 2.6 |
| 11 | Ground Miscanthus Grass | Miscanthus Grass | fibre | medium | - | 2.6 |
| 12 | Natural Flavor | Flavor | additive | poor | - | 2.5 |
| 13 | Calcium Carbonate | Calcium Carbonate | supplement | medium | - | 2.5 |
| 14 | DL-Methionine | Methionine | supplement | good | - | 2.5 |
| 15 | Potassium Chloride | Potassium Chloride | supplement | medium | - | 2.4 |
| 16 | Salt | Salt | additive | poor | - | 2.4 |
| 17 | Dried Pumpkin | Pumpkin | veg | good | - | 2.4 |
| 18 | Dried Blueberries | Blueberries | veg | good | - | 2.3 |
| 19 | Dried Spinach | Spinach | veg | good | - | 2.3 |
| 20 | Dried Chicory Root | Chicory root | veg | good | - | 2.3 |
| 21 | Choline Chloride | Choline | supplement | good | - | 2.3 |
| 22 | Taurine | Taurine | supplement | good | - | 2.2 |
| 23 | Vitamin E Supplement | Vitamin E | supplement | good | - | 2.2 |
| 24 | Zinc Proteinate | Zinc Proteinate | supplement | good | - | 2.2 |
| 25 | Zinc Sulfate | Zinc sulfate | supplement | medium | - | 2.1 |
| 26 | L-Ascorbyl-2-Polyphosphate | L-ascorbyl-2-polyphosphate | supplement | good | - | 2.1 |
| 27 | Iron Proteinate | Iron Proteinate | mineral | good | - | 2.1 |
| 28 | Niacin Supplement | Niacin | supplement | good | - | 2.0 |
| 29 | Ferrous Sulfate | Iron sulfate | supplement | good | - | 2.0 |
| 30 | Copper Proteinate | Copper proteinate | supplement | good | - | 2.0 |
| 31 | Copper Sulfate | Copper sulphate | supplement | good | - | 1.9 |
| 32 | Vitamin A Supplement | Vitamin A | supplement | good | - | 1.9 |
| 33 | Manganese Proteinate | Manganese proteinate | supplement | good | - | 1.9 |
| 34 | Thiamine Mononitrate | Thiamine mononitrate | supplement | good | - | 1.8 |
| 35 | Calcium Pantothenate | Calcium pantothenate | supplement | good | - | 1.8 |
| 36 | Riboflavin Supplement | Riboflavin | supplement | good | - | 1.8 |
| 37 | Pyridoxine Hydrochloride | Pyridoxine hydrochloride | supplement | good | - | 1.8 |
| 38 | Manganous Oxide | Manganese (II) Oxide | supplement | good | - | 1.7 |
| 39 | Biotin | Biotin | supplement | good | - | 1.7 |
| 40 | Dried Bacillus coagulans Fermentation Product | Dried Bacillus coagulans fermentation product | supplement | good | - | 1.7 |
| 41 | Vitamin B12 Supplement | Vitamin B12 | supplement | good | - | 1.6 |
| 42 | Vitamin D3 Supplement | Vitamin D3 supplement | supplement | good | - | 1.6 |
| 43 | Folic Acid | Folic acid | supplement | good | - | 1.6 |
| 44 | Sodium Selenite | Sodium selenite | supplement | poor | - | 1.5 |
| 45 | Calcium Iodate | Calcium iodate | supplement | medium | - | 1.5 |
| 46 | Rosemary Extract | Rosemary | veg | good | - | 1.5 |
Brand
- Website
- https://nulo.com/
Trust and provenance
- Recall history
- No recalls recorded in our database
- Label data last checked
- 2026-08-22
- Scored with
- Model v2 (methodology)
- Product page
- nulo.com
Recall history is presentation-only and never affects the score. Dates are when we recorded the data, not when the manufacturer last changed the recipe.
Spotted a mistake in this listing? Report it here and we'll take a look.
Recipe: how the 1-100 score is calculated
Scored with model v2 on 2026-09-22. Each component is the feature value for this product multiplied by the model's published coefficient.
| Component | Input | Coefficient | Contribution |
|---|---|---|---|
| Base score | - | 32.336 | +32.34 |
| Average ingredient quality | 0.7 | 9.915 | +6.66 |
| Meat share of dry matter | 11.8% | 0.116 | +1.36 |
| Carb share of dry matter | 8.3% | -0.113 | -0.94 |
| Oil share of dry matter | 3.1% | -0.088 | -0.27 |
| Vegetable share of dry matter | 10.1% | -0.002 | -0.02 |
| Additive share of dry matter | 5.2% | 0.177 | +0.93 |
| Supplement share of dry matter | 56.5% | -0.009 | -0.50 |
| Recipe graded poor | 6.5% | -0.045 | -0.29 |
| Number of poor ingredients | 3 | -0.868 | -2.60 |
| Largest single poor ingredient | 2.5% | 0.056 | +0.14 |
| Undeclared quantities | 100.0% | -0.131 | -13.09 |
| Complete diet | yes | 1.703 | +1.70 |
| Additive penalty | -5.98 | 0.236 | -1.41 |
| Processing multiplier | 1.00 | 32.336 | +32.34 |
| Processing: Dry Extruded | yes | -6.996 | -7.00 |
Show all 40 components
| Component | Input | Coefficient | Contribution |
|---|---|---|---|
| Base score | - | 32.336 | +32.34 |
| Average ingredient quality | 0.7 | 9.915 | +6.66 |
| Meat share of dry matter | 11.8% | 0.116 | +1.36 |
| Carb share of dry matter | 8.3% | -0.113 | -0.94 |
| Oil share of dry matter | 3.1% | -0.088 | -0.27 |
| Vegetable share of dry matter | 10.1% | -0.002 | -0.02 |
| Additive share of dry matter | 5.2% | 0.177 | +0.93 |
| Supplement share of dry matter | 56.5% | -0.009 | -0.50 |
| Other share of dry matter | 0.0% | -0.371 | +0.00 |
| Unrecognised share of dry matter | 0.0% | -0.022 | +0.00 |
| Recipe graded poor | 6.5% | -0.045 | -0.29 |
| Poor-quality meat in recipe | 0.0% | -0.182 | +0.00 |
| Number of poor ingredients | 3 | -0.868 | -2.60 |
| Largest single poor ingredient | 2.5% | 0.056 | +0.14 |
| Undeclared quantities | 100.0% | -0.131 | -13.09 |
| Prints ingredient percentages | no | 3.194 | +0.00 |
| Complete diet | yes | 1.703 | +1.70 |
| Frozen or chilled fresh | no | 11.440 | +0.00 |
| High meat (30%+ of dry matter) | no | -0.506 | +0.00 |
| Low meat (under 10% of dry matter) | no | -1.988 | +0.00 |
| High carb and low meat | no | -1.250 | +0.00 |
| Meat share × printed percentages | 0.0 | -0.073 | +0.00 |
| Meat share × fresh | 0.0 | -0.339 | +0.00 |
| Fresh × high meat | 0.0 | 16.475 | +0.00 |
| Additive penalty | -5.98 | 0.236 | -1.41 |
| Processing multiplier | 1.00 | 32.336 | +32.34 |
| Processing: Raw | no | 13.322 | +0.00 |
| Processing: Fresh Chilled | no | 7.712 | +0.00 |
| Processing: Fresh Frozen | no | 6.583 | +0.00 |
| Processing: Fresh Refrigerated | no | 4.857 | +0.00 |
| Processing: Fresh Shelf | no | 0.072 | +0.00 |
| Processing: Dry Freeze Dried | no | 11.127 | +0.00 |
| Processing: Dry Air Dried | no | 9.320 | +0.00 |
| Processing: Dry Cold Pressed | no | 4.569 | +0.00 |
| Processing: Dry Baked | no | -2.321 | +0.00 |
| Processing: Dry Extruded | yes | -6.996 | -7.00 |
| Processing: Dry Semi Moist | no | -6.833 | +0.00 |
| Processing: Dry Muesli | no | -10.711 | +0.00 |
| Processing: Wet Pate | no | 2.935 | +0.00 |
| Processing: Wet Chunks | no | 2.292 | +0.00 |
- Processing-type offset
- -0.01
- Additives declared on label
- +1 transparency bonus
- Subtotal
- 50.3
- Final score
- 50/100
Contributions are rounded to two decimals, so they may not sum exactly to the subtotal. The full coefficient table is published on the methodology page.
Score history across model versions
The score shown above is always computed with the latest published model. Earlier scores are kept for the record and are never edited or deleted; a scoring change ships as a new model version with a public write-up on the methodology page.
| Model | Score | |
|---|---|---|
| v2 | 50/100 | current |
| v1 | 50/100 | |
| v1.9 | 50/100 |
Nutritional: declared analysis vs reference ranges
How the declared analysis compares with FEDIAF reference ranges for adult dogs. The label prints as-fed values; we convert to a dry-matter basis before scoring, and the bands are dry-matter ranges. Scores rise to 100 at the band midpoint: the reference is adequacy, not maximisation. Nutrients with a published upper limit taper again above it; fat is policed through calorie density rather than a direct penalty.
Guaranteed-analysis FEDIAF score: crude minimums and maximums are bounds, not typical values; moisture (a maximum) uses the processing median where available; experimental US score.
| Nutrient | As fed (label) | Dry matter (scored) | Score |
|---|---|---|---|
| Protein | 35 | 38 (band 18 to 40%) | 100 |
| Fat | 18 | 19.6 (band 5.5 to 20%) | 100 |
| Fibre | 4.5 | 4.9 (band 0.5 to 5%) | 100 |
| Calcium | 1.2 | 1.3 (band 0.5 to 2.5%) | 94.1 |
| Phosphorus | 1 | 1.1 (band 0.4 to 1.6%) | 100 |
| Calcium:phosphorus ratio | 1.2 | 1.2 (band 1 to 2%) | 82 |
| Omega fatty acids (omega-6 and omega-3) | - | - | 100 |
Omega fatty acids (omega-6 and omega-3): scored as the mean of its declared components (omega-6 100). The FEDIAF minimum for omega-6 is linoleic acid specifically.
Scored over 7 declared nutrients (combined weight 90); undeclared nutrients do not affect the score. Moisture was not declared and was estimated at 8% from the food type.
Low confidence: partial analysis or moisture estimated from the food type.
This measures agreement with published reference ranges, not suitability for an individual dog. For medical conditions, follow veterinary guidance.
Transparency: what the label discloses
How much the manufacturer discloses, measured against the FEDIAF Code of Good Labelling Practice and Regulation 767/2009. Mandatory items dominate the weighting.
| Item | Points |
|---|---|
| Ingredient list on the label (mandatory) | 10/10 |
| Printed percentages on the label (voluntary) - not on file | 0/20 |
| Analytical constituents declared (mandatory) - not on file | 0/15 |
| Additives declared (mandatory) | 5/10 |
| Energy value declared (voluntary) - not on file | 0/5 |
| Complete/complementary designation (mandatory) | 5/5 |
| Feeding guidance given (mandatory) - not on file | 0/10 |
| Manufacturer identity and address (mandatory) | 5/10 |
| Country of manufacture stated (voluntary) | 10/10 |
| Batch and date labelling (mandatory) - not on file | 0/5 |
Capped at 60: mandatory items missing (Analytical constituents declared, Feeding guidance given, Batch and date labelling).
Safety: recall history
Recall and safety-notice history, time-decayed. This dimension is shown alongside the score and never feeds the headline number.
No recalls recorded in our database.
See all current recalls we track.
Evidence: what the brand claims, and what supports it
The marketing claims made on the pack and product page, and how much evidence sits behind them. We record the claims as stated; we do not assess whether they are true.
| Claim | Type | Substantiation |
|---|---|---|
| High-quality proteins provide amino acids that support lean muscle mass and a healthy heart (on page) | Functional | Manufacturer assertion |
| GanedenBC30® probiotic supports your pet's digestive and immune health (on page) | Functional | Manufacturer assertion |
| All recipes contain wholesome vegetables and fruits and Vitamins C and E that work together to support immune health (on page) | Functional | Manufacturer assertion |
| A balanced amount of Omega-3 and Omega-6 fatty acids nourish your pet's skin and help promote a beautiful shiny coat (on page) | Functional | Manufacturer assertion |
| Complete and balanced for all life stages, including growing puppies and adult dogs alike (on page) | Functional | Manufacturer assertion |
| source of Vitamin C (on page) | Nutrient | Manufacturer assertion |
| recyclable packaging (on page) | Content | Manufacturer assertion |
| Our top five ingredients are animal protein sources (on page) | Content | Manufacturer assertion |
| Challenger Organic Ancient Grains Haddock, Salmon & Acadian Redfish Recipe for Dogs (on page) | Content | Manufacturer assertion |
| Formulated with Organic Oats, Organic Barley and Organic Millet (on page) | Content | Manufacturer assertion |
| sustainably caught haddock, salmon, and Acadian redfish (on page) | Content | Manufacturer assertion |
| sustainably and ethically sourced ingredients (on page) | Content | Manufacturer assertion |
| Certified-Organic grains like oats, millet, barley, and rye (on page) | Content | Manufacturer assertion |
| omega-rich ocean proteins (on page) | Content | Manufacturer assertion |
| Challenger's dry dog foods offer 32-35% protein – 83-90% of which is animal-based (on page) | High/low level | Manufacturer assertion |
| Low carbohydrate levels and low glycemic ingredients (on page) | High/low level | Manufacturer assertion |
| Contains a source of viable naturally occurring microorganisms (on page) | Nutrient | Manufacturer assertion |
| natural omega fatty acids (on page) | Content | Manufacturer assertion |
Limited: at least one claim rests on manufacturer assertion alone.
The full scoring method is published. See the methodology for exactly how the headline score and each dimension are calculated.
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