Nulo Organic Ancient Grains Haddock, Salmon & Acadian Redfish Recipe
Dry Extruded · complete
Our verdict
Is Nulo Organic Ancient Grains Haddock, Salmon & Acadian Redfish Recipe a good dog food?
We score it 48/100 (Average). This reflects the ingredient quality, composition and label transparency of the recipe as declared on the label.
Complete extruded dry food for dogs of all life stages, with haddock, salmon and salmon protein as the main ingredients.
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.
Who is this food for?
Suits
- Labelled by the manufacturer for all lifestages
- Labelling or feeding guide is aimed at medium dogs
- 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. Find foods that fit your dog.
Nutrition and feedingProtein 35% · Fat 18%
Typical analysis (as fed)
| Nutrient | 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
Feeding and storage
Feeding guide
Dog Daily Feeding Guidelines (cups/day, 8 oz measuring cup) Up to 5 lbs: ½ - 1 cup 6 - 25 lbs: 1 – 1 ½ cups 26 - 40 lbs: 1 ½ - 2 cups 41- 60 lbs: 2 – 2 ¾ cups 61 – 80 lbs: 2 ¾ - 3 ¼ cups 81 - 100 lbs: 3 ¼ - 3 ¾ cups Over 100 lbs: 3 ¾ + ½ cup for each additional 20 lbs Small And Medium Size Puppies (70 lb. or less as an adult): Feed up to twice the amounts shown. Large Size Puppies (70 lb. or more as an adult): Use for intermittent or supplemental feeding only. Nursing & Pregnant Mothers: Feed up to three times the amounts shown.
Additives declared on the label
Nutritional additives
Vitamin E 150 IU/kg; Taurine 0.20%; Ascorbic Acid 65 mg/kg
Ingredients (46)100% of the recipe is estimated
Estimated composition
- supplement 52.3%
- meat 16.7%
- veg 10.8%
- carb 8.0%
- additive 4.9%
- oil 2.7%
- fibre 2.6%
- mineral 2.1%
| # | As declared | Matched | Label reading | 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 |
- 1. Haddock2.9% estimated
- 2. Deboned Salmon2.8% estimated
- 3. Salmon Meal2.8% estimated
- 4. Turkey Meal2.8% estimated
- 5. Chicken Meal2.8% estimated
- 6. Organic Oats2.7% estimated
- 7. Organic Millet2.7% estimated
- 8. Chicken Fat2.7% estimated
- 9. Organic Barley2.6% estimated
- 10. Acadian Redfish2.6% estimated
- 11. Ground Miscanthus Grass2.6% estimated
- 12. Natural Flavor2.5% estimated
- 13. Calcium Carbonate2.5% estimated
- 14. DL-Methionine2.5% estimated
- 15. Potassium Chloride2.4% estimated
- 16. Salt2.4% estimated
- 17. Dried Pumpkin2.4% estimated
- 18. Dried Blueberries2.3% estimated
- 19. Dried Spinach2.3% estimated
- 20. Dried Chicory Root2.3% estimated
- 21. Choline Chloride2.3% estimated
- 22. Taurine2.2% estimated
- 23. Vitamin E Supplement2.2% estimated
- 24. Zinc Proteinate2.2% estimated
- 25. Zinc Sulfate2.1% estimated
- 26. L-Ascorbyl-2-Polyphosphate2.1% estimated
- 27. Iron Proteinate2.1% estimated
- 28. Niacin Supplement2.0% estimated
- 29. Ferrous Sulfate2.0% estimated
- 30. Copper Proteinate2.0% estimated
- 31. Copper Sulfate1.9% estimated
- 32. Vitamin A Supplement1.9% estimated
- 33. Manganese Proteinate1.9% estimated
- 34. Thiamine Mononitrate1.8% estimated
- 35. Calcium Pantothenate1.8% estimated
- 36. Riboflavin Supplement1.8% estimated
- 37. Pyridoxine Hydrochloride1.8% estimated
- 38. Manganous Oxide1.7% estimated
- 39. Biotin1.7% estimated
- 40. Dried Bacillus coagulans Fermentation Product1.7% estimated
- 41. Vitamin B12 Supplement1.6% estimated
- 42. Vitamin D3 Supplement1.6% estimated
- 43. Folic Acid1.6% estimated
- 44. Sodium Selenite1.5% estimated
- 45. Calcium Iodate1.5% estimated
- 46. Rosemary Extract1.5% estimated
Trust and sourceNo recalls recorded in our database · checked 2026-08-22
Brand and contact: Nulo
- 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 v3 (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.
Score details and methodologyCalculations, history and evidence
Recipe: how the 1-100 score is calculated
Why this score?
This recipe achieves an overall rating of 48 out of 100. The inclusion of ingredients without printed percentages contributed -10.6 points, and the processing format adjusted the score by -6.7. Conversely, the overall quality of the ingredient list added +6.2 points, while being labelled nutritionally complete contributed +2.3 points to the final evaluation.
Scored with model v3 on 2026-10-25. Each component is the feature value for this product multiplied by the model's published coefficient.
| Component | Input | Coefficient | Contribution |
|---|---|---|---|
| Base score | - | 30.909 | +30.91 |
| Average ingredient quality | 0.7 | 9.191 | +6.18 |
| Carb share of dry matter | 8.3% | -0.115 | -0.96 |
| Oil share of dry matter | 3.1% | -0.092 | -0.28 |
| Vegetable share of dry matter | 10.1% | -0.005 | -0.05 |
| Additive share of dry matter | 5.2% | 0.163 | +0.85 |
| Supplement share of dry matter | 56.5% | -0.012 | -0.69 |
| Recipe graded poor | 6.5% | -0.065 | -0.42 |
| Number of poor ingredients | 3 | -0.876 | -2.63 |
| Largest single poor ingredient | 2.5% | 0.060 | +0.15 |
| Undeclared quantities | 100.0% | -0.106 | -10.56 |
| Complete diet | yes | 2.294 | +2.29 |
| Low meat (under 10% of dry matter) | yes | -3.158 | -3.16 |
| Additive penalty | -5.98 | 0.222 | -1.33 |
| Processing multiplier | 0.98 | 33.786 | +33.11 |
| Processing: Dry Extruded | yes | -6.713 | -6.71 |
Show all 40 components
| Component | Input | Coefficient | Contribution |
|---|---|---|---|
| Base score | - | 30.909 | +30.91 |
| Average ingredient quality | 0.7 | 9.191 | +6.18 |
| Meat share of dry matter | 0.0% | 0.096 | +0.00 |
| Carb share of dry matter | 8.3% | -0.115 | -0.96 |
| Oil share of dry matter | 3.1% | -0.092 | -0.28 |
| Vegetable share of dry matter | 10.1% | -0.005 | -0.05 |
| Additive share of dry matter | 5.2% | 0.163 | +0.85 |
| Supplement share of dry matter | 56.5% | -0.012 | -0.69 |
| Other share of dry matter | 0.0% | -0.375 | +0.00 |
| Unrecognised share of dry matter | 0.0% | -0.027 | +0.00 |
| Recipe graded poor | 6.5% | -0.065 | -0.42 |
| Poor-quality meat in recipe | 0.0% | -0.179 | +0.00 |
| Number of poor ingredients | 3 | -0.876 | -2.63 |
| Largest single poor ingredient | 2.5% | 0.060 | +0.15 |
| Undeclared quantities | 100.0% | -0.106 | -10.56 |
| Prints ingredient percentages | no | 0.000 | +0.00 |
| Complete diet | yes | 2.294 | +2.29 |
| Frozen or chilled fresh | no | 0.000 | +0.00 |
| High meat (30%+ of dry matter) | no | 0.707 | +0.00 |
| Low meat (under 10% of dry matter) | yes | -3.158 | -3.16 |
| High carb and low meat | no | -1.180 | +0.00 |
| Meat share × printed percentages | 0.0 | 0.000 | +0.00 |
| Meat share × fresh | 0.0 | 0.000 | +0.00 |
| Fresh × high meat | 0.0 | 11.084 | +0.00 |
| Additive penalty | -5.98 | 0.222 | -1.33 |
| Processing multiplier | 0.98 | 33.786 | +33.11 |
| Processing: Raw | no | -0.054 | +0.00 |
| Processing: Fresh Chilled | no | -2.354 | +0.00 |
| Processing: Fresh Frozen | no | -2.354 | +0.00 |
| Processing: Fresh Refrigerated | no | 0.000 | +0.00 |
| Processing: Fresh Shelf | no | -0.672 | +0.00 |
| Processing: Dry Freeze Dried | no | 6.629 | +0.00 |
| Processing: Dry Air Dried | no | 6.331 | +0.00 |
| Processing: Dry Cold Pressed | no | -6.713 | +0.00 |
| Processing: Dry Baked | no | -6.713 | +0.00 |
| Processing: Dry Extruded | yes | -6.713 | -6.71 |
| Processing: Dry Semi Moist | no | -6.174 | +0.00 |
| Processing: Dry Muesli | no | -10.146 | +0.00 |
| Processing: Wet Pate | no | -0.672 | +0.00 |
| Processing: Wet Chunks | no | -0.672 | +0.00 |
- Processing-type offset
- +0.02
- Additives declared on label
- +1 transparency bonus
- Subtotal
- 47.7
- Final score
- 48/100
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.
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 | 38.7 (band 18 to 40%) | 100 |
| Fat | 18 | 19.9 (band 5.5 to 20%) | 100 |
| Fibre | 4.5 | 5 (band 0.5 to 5%) | 100 |
| Calcium | 1.2 | 1.3 (band 0.5 to 2.5%) | 94.8 |
| 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 9.5% from the food type.
Declared fortification: 3 nutritional additives on the label
- Vitamin E 150 IU/kg
- Taurine 0.20%
- Ascorbic Acid 65 mg/kg
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) | 10/10 |
| 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, 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 claims made on the pack and product page, checked against the declared label. We record claims as stated; "consistent" means our stored label data supports the claim, "contradicted" means it conflicts with it. Functional claims are recorded but never scored.
Claims on file; none we can check against the label
| Claim | Type | Check | Substantiation |
|---|---|---|---|
| sustainably caught haddock, salmon, and Acadian redfish (on page) | provenance | not checkable | Manufacturer assertion |
| sustainably and ethically sourced ingredients (on page) | provenance | not checkable | Manufacturer assertion |
| High-quality proteins provide amino acids that support lean muscle mass and a healthy heart (on page) | Functional | not checkable | Manufacturer assertion |
| GanedenBC30® probiotic supports your pet's digestive and immune health (on page) | Functional | not checkable | Manufacturer assertion |
| All recipes contain wholesome vegetables and fruits and Vitamins C and E that work together to support immune health (on page) | Functional | not checkable | 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 | not checkable | Manufacturer assertion |
| Complete and balanced for all life stages, including growing puppies and adult dogs alike (on page) | Functional | not checkable | Manufacturer assertion |
| source of Vitamin C (on page) | Nutrient | not checkable | Manufacturer assertion |
| recyclable packaging (on page) | Content | not checkable | Manufacturer assertion |
| Our top five ingredients are animal protein sources (on page) | Content | not checkable | Manufacturer assertion |
| Challenger Organic Ancient Grains Haddock, Salmon & Acadian Redfish Recipe for Dogs (on page) | Content | not checkable | Manufacturer assertion |
| Formulated with Organic Oats, Organic Barley and Organic Millet (on page) | Content | not checkable | Manufacturer assertion |
| Certified-Organic grains like oats, millet, barley, and rye (on page) | Content | not checkable | Manufacturer assertion |
| omega-rich ocean proteins (on page) | Content | not checkable | Manufacturer assertion |
| Challenger's dry dog foods offer 32-35% protein – 83-90% of which is animal-based (on page) | High/low level | not checkable | Manufacturer assertion |
| Low carbohydrate levels and low glycemic ingredients (on page) | High/low level | not checkable | Manufacturer assertion |
| Contains a source of viable naturally occurring microorganisms (on page) | Nutrient | not checkable | Manufacturer assertion |
| natural omega fatty acids (on page) | Content | not checkable | Manufacturer assertion |
The full scoring method is published. See the methodology for exactly how the headline score and each dimension are calculated.
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