Working Dog Food Company Grain Free Salmon With Trout, Sweet Potato & Asparagus
Dry Extruded complete High meat Clear label

Is Working Dog Food Company Grain Free Salmon With Trout, Sweet Potato & Asparagus a good dog food?
We score it 70/100 (Good). This reflects the ingredient quality, composition and label transparency of the recipe as declared on the label.
Why this score?
This food achieves a score of 70 out of 100 based on several key factors. The overall quality of the ingredient list adds +9.1 to the total, while the processing format reduces the score by -7. Additionally, the meat content contributes +6.1, and printing percentages on the label adds +3.2.
- Recipe70
- Nutritionalhigh95
- Transparency60
- 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 adult dogs, with salmon, sweet potatoes and peas as the main ingredients.
Why you might choose it
- Scores 70, in the top quarter of dry foods we track.
- Meat makes up an estimated 52% of the dry matter (50% as fed).
- Prints ingredient percentages on the label.
Why you might not
We found no significant drawbacks in the data we hold for this product.
Estimated composition
Typical analysis (as fed)
- Protein
- 26%
- Fat
- 11%
- Fibre
- 3%
- Ash
- 7.50%
- Moisture
- 8%
- Carbohydrates
- 44.50%
- Omega-3 fatty acids
- 3%
- Omega-6 fatty acids
- 1.10%
- Calcium
- 1.40%
- Phosphorus
- 0.90%
Energy: 359 kcal/100g
Additives & feeding info
Nutritional additives
Vitamin A 15,000 IU; Vitamin D3 2,000 IU; Vitamin E 95 IU
Storage
Shelf Life: 18 month
Feeding guide
Adult Dog: 1 - 5kg: 25 - 85g, 5 - 10kg: 85 - 145g, 10 - 20kg: 145 - 245g, 20 - 30kg: 245 - 335g, 30 - 40kg: 335 - 415g, 40+kg: 415+g
Who is this food for?
Suits
- Labelled by the manufacturer for adult dogs
- Grain-free: no grain ingredients listed
- Single named protein: fish
- Doesn't list chicken, beef, turkey, lamb, venison, pork, duck as ingredients
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 (7)
| # | As declared | Matched | Category | Tier | Declared % | Est. % |
|---|---|---|---|---|---|---|
| 1 | Salmon & Trout (50%) | Salmon | meat | good | 50 | 50.0 |
| 2 | Sweet Potato (24%) | Sweet Potatoes | carb | good | 24 | 24.0 |
| 3 | Peas (9%) | Peas | veg | good | 9 | 9.0 |
| 4 | Potato | Potatoes | carb | medium | - | 5.2 |
| 5 | Beet Pulp | Beet Pulp | fibre | medium | - | 4.6 |
| 6 | Linseed | Linseed | veg | good | - | 3.9 |
| 7 | Omega 3 Supplement | Omega-3 Supplement | supplement | good | - | 3.3 |
Brand
Trust and provenance
- Recall history
- No recalls recorded in our database
- Label data last checked
- 2026-09-14
- Scored with
- Model v2 (methodology)
- Product page
- www.workingdogfoodcompany.co.uk
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 | 0.9 | 9.915 | +9.11 |
| Meat share of dry matter | 52.4% | 0.116 | +6.08 |
| Carb share of dry matter | 18.0% | -0.113 | -2.03 |
| Vegetable share of dry matter | 12.0% | -0.002 | -0.02 |
| Supplement share of dry matter | 7.4% | -0.009 | -0.07 |
| Undeclared quantities | 17.0% | -0.131 | -2.23 |
| Prints ingredient percentages | yes | 3.194 | +3.19 |
| Complete diet | yes | 1.703 | +1.70 |
| High meat (30%+ of dry matter) | yes | -0.506 | -0.51 |
| Meat share × printed percentages | 52.4 | -0.073 | -3.84 |
| 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 | 0.9 | 9.915 | +9.11 |
| Meat share of dry matter | 52.4% | 0.116 | +6.08 |
| Carb share of dry matter | 18.0% | -0.113 | -2.03 |
| Oil share of dry matter | 0.0% | -0.088 | +0.00 |
| Vegetable share of dry matter | 12.0% | -0.002 | -0.02 |
| Additive share of dry matter | 0.0% | 0.177 | +0.00 |
| Supplement share of dry matter | 7.4% | -0.009 | -0.07 |
| 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 | 0.0% | -0.045 | +0.00 |
| Poor-quality meat in recipe | 0.0% | -0.182 | +0.00 |
| Number of poor ingredients | 0 | -0.868 | +0.00 |
| Largest single poor ingredient | 0.0% | 0.056 | +0.00 |
| Undeclared quantities | 17.0% | -0.131 | -2.23 |
| Prints ingredient percentages | yes | 3.194 | +3.19 |
| Complete diet | yes | 1.703 | +1.70 |
| Frozen or chilled fresh | no | 11.440 | +0.00 |
| High meat (30%+ of dry matter) | yes | -0.506 | -0.51 |
| 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 | 52.4 | -0.073 | -3.84 |
| Meat share × fresh | 0.0 | -0.339 | +0.00 |
| Fresh × high meat | 0.0 | 16.475 | +0.00 |
| Additive penalty | 0.00 | 0.236 | +0.00 |
| 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
- 70.1
- Final score
- 70/100
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 | 70/100 | current |
| v1 | 66/100 |
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.
| Nutrient | As fed (label) | Dry matter (scored) | Score |
|---|---|---|---|
| Protein | 26 | 28.3 (band 18 to 40%) | 98 |
| Fat | 11 | 12 (band 5.5 to 20%) | 96.7 |
| Fibre | 3 | 3.3 (band 0.5 to 5%) | 100 |
| Calcium | 1.4 | 1.5 (band 0.5 to 2.5%) | 100 |
| Phosphorus | 0.9 | 1 (band 0.4 to 1.6%) | 98.9 |
| Calcium:phosphorus ratio | 1.6 | 1.6 (band 1 to 2%) | 100 |
| Omega fatty acids (omega-6 and omega-3) | - | - | 63.4 |
| Energy (kcal/100g) | 359 | 390.2 | 100 |
Omega fatty acids (omega-6 and omega-3): scored as the mean of its declared components (omega-6 63.4). The FEDIAF minimum for omega-6 is linoleic acid specifically.
Scored over 8 declared nutrients (combined weight 100); undeclared nutrients do not affect the score.
High confidence: full analysis plus minerals or omegas and declared energy.
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 (83% of the recipe mass) (voluntary) | 16.6/20 |
| Analytical constituents declared (mandatory) | 15/15 |
| Additives declared (mandatory) | 5/10 |
| Energy value declared (voluntary) | 5/5 |
| 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 (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 |
|---|---|---|
| formulated with sweet potato and potato to be suitable for those with grain intolerance/sensitivity (on page) | Functional | Manufacturer assertion |
| Vet approved formula that’s gentle on digestion and a great choice for all breeds of dog (on page) | Functional | Manufacturer assertion |
| Salmon is naturally rich in omega 3 essential fatty acids which have anti-inflammatory properties and provide support for skin and coat condition and joint health (on page) | Functional | Manufacturer assertion |
| Asparagus is rich in vitamins A, C and K plus folic acid which all help contribute to general health & well-being (on page) | Functional | Manufacturer assertion |
| 100% British Product - British Made with ingredients supplied from within the UK only (on page) | Content | Manufacturer assertion |
| Sweet Potato: An excellent alternative to grains, sweet potato is a complex carbohydrate high in B vitamins (on page) | Content | Manufacturer assertion |
| 50% Total Salmon & Trout: Rich in amino acids, vitamins & minerals salmon & trout are delicious sources of protein (on page) | Content | Manufacturer assertion |
| No added sugar, sweeteners or salt (on page) | Free-from | Manufacturer assertion |
| Added Omega 3: Supplement To help support healthy skin & coat (on page) | Functional | Manufacturer assertion |
| Pre-biotics MOS (Mannan-oligosaccharides) & FOS (Fructo-oligosaccharides) which may help to promote the growth of healthy gut bacteria and aid digestion (on page) | Functional | Manufacturer assertion |
| No Added Artificial: Colours & Preservatives (on page) | Free-from | Manufacturer assertion |
| Naturally preserved using rosemary extract (on page) | Content | Manufacturer assertion |
| Grain Free range includes a selection of the finest freshly prepared nutritious and highly digestible animal protein sources (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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