Wonderdog Grain-Free White Fish & Sweet Potato
Dry Extruded · completeHigh meatClear label
Our verdict
Is Wonderdog Grain-Free White Fish & Sweet Potato a good dog food?
We score it 68/100 (Average). This reflects the ingredient quality, composition and label transparency of the recipe as declared on the label.
Complete extruded dry food for adult dogs, with white fish, potatoes and sweet potatoes as the main ingredients.
Only part of the analytical constituents are declared, so the nutritional picture is incomplete.
Who is this food for?
Suits
- Labelled by the manufacturer for adult dogs
- Grain-free: no grain ingredients listed
- Doesn't list beef, lamb, venison, pork, duck as ingredients
Consider something else if:
- Your dog avoids chicken: the label lists poultry fat
- Your dog avoids turkey: the label lists poultry fat
- Your dog avoids fish: the label lists white fish
- You want a single-protein recipe: this one lists more than one animal protein
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 24% · Fat 11%
Typical analysis (as fed)
| Nutrient | As fed |
|---|---|
| Protein | 24% |
| Fat | 11% |
| Fibre | 3.50% |
| Ash | 10% |
Additives & feeding info
Feeding and storage
Storage
Store in a cool dry place.
Feeding guide
Size of Dog / Weight / Daily Amount: Small 5-10kg 56-142g; Medium 11-20kg 142-227g; Large 21-30kg 227-340g; Giant 31kg+ 340-454g. Split into two equal meals. For nursing dogs add extra 90-120g per day. Introduce gradually over 4-7 days. Soak with hot water to feed moistened.
Additives declared on the label
Nutritional additives
Vitamin A 17,000 IU/kg; Vitamin D3 1,500 IU/kg; Vitamin E 70 mg/kg; Iodine (as Calcium Iodate Anhydrous) 2.5 mg/kg; Selenium (as Sodium Selenite) 0.1 mg/kg; Copper (as Cupric Sulphate Pentahydrate) 8 mg/kg; Iron (as Ferrous Sulphate Monohydrate) 60 mg/kg; Manganese (as Manganous Oxide) 50 mg/kg; Zinc (as Zinc Oxide) 100 mg/kg
Technological additives
Preservatives; Antioxidants
Ingredients (12)22% of the recipe is estimated
Estimated composition
- carb 47.0%
- meat 26.0%
- veg 8.1%
- oil 7.7%
- supplement 6.6%
- fibre 4.6%
| # | As declared | Matched | Label reading | Declared % | Est. % |
|---|---|---|---|---|---|
| 1 | White Fish Meal (26%) | White Fish | meat · good | 26 | 26.0 |
| 2 | Potato (25%) | Potatoes | carb · medium | 25 | 25.0 |
| 3 | Sweet Potato (22%) | Sweet Potatoes | carb · good | 22 | 22.0 |
| 4 | Dried Sugar Beet Pulp | Beet Pulp | fibre · medium | - | 4.6 |
| 5 | Poultry Fat | Poultry Fat | oil · medium | - | 4.2 |
| 6 | Peas (5%) | Peas | veg · good | 5 | 5.0 |
| 7 | Dried Brewers Yeast | Brewer's Yeast | supplement · good | - | 3.8 |
| 8 | Salmon Oil | Salmon Oil | oil · good | - | 3.5 |
| 9 | Whole Linseed | Linseed | veg · good | - | 3.1 |
| 10 | Vitamins & Minerals | Vitamin | supplement · good | - | 2.7 |
| 11 | 0.05% glucosamine | Glucosamine | supplement · good | 0.05 | 0.05 |
| 12 | 0.025% chondroitin | Chondroitin | supplement · good | 0.025 | 0.03 |
- 1. White Fish Meal (26%)26% declared26.0% estimated
- 2. Potato (25%)25% declared25.0% estimated
- 3. Sweet Potato (22%)22% declared22.0% estimated
- 4. Dried Sugar Beet Pulp4.6% estimated
- 5. Poultry Fat4.2% estimated
- 6. Peas (5%)5% declared5.0% estimated
- 7. Dried Brewers Yeast3.8% estimated
- 8. Salmon Oil3.5% estimated
- 9. Whole Linseed3.1% estimated
- 10. Vitamins & Minerals2.7% estimated
- 11. 0.05% glucosamine0.05% declared0.05% estimated
- 12. 0.025% chondroitin0.025% declared0.03% estimated
Trust and sourceNo recalls recorded in our database · checked 2026-09-14
Brand and contact: Wonderdog
- Website
- https://www.wonderdog.co.uk/
- [email protected]
- Phone
- 01724 872 448
Trust and provenance
- Recall history
- No recalls recorded in our database
- Label data last checked
- 2026-09-14
- Scored with
- Model v3 (methodology)
- Product page
- wonderdog.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.
Score details and methodologyCalculations, history and evidence
Recipe: how the 1-100 score is calculated
Why this score?
This recipe achieves a total score of 68 out of 100. The overall quality of the ingredient list contributes +7.4 points to the total, while the processing format contributes -6.7 points. Additionally, the meat content adds +4 points, and the carbohydrate content contributes -2.4 points.
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 | 0.8 | 9.191 | +7.36 |
| Meat share of dry matter | 41.9% | 0.096 | +4.03 |
| Carb share of dry matter | 20.6% | -0.115 | -2.37 |
| Oil share of dry matter | 13.4% | -0.092 | -1.23 |
| Vegetable share of dry matter | 6.2% | -0.005 | -0.03 |
| Supplement share of dry matter | 10.7% | -0.012 | -0.13 |
| Undeclared quantities | 21.9% | -0.106 | -2.31 |
| Complete diet | yes | 2.294 | +2.29 |
| High meat (30%+ of dry matter) | yes | 0.707 | +0.71 |
| 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 | 0.8 | 9.191 | +7.36 |
| Meat share of dry matter | 41.9% | 0.096 | +4.03 |
| Carb share of dry matter | 20.6% | -0.115 | -2.37 |
| Oil share of dry matter | 13.4% | -0.092 | -1.23 |
| Vegetable share of dry matter | 6.2% | -0.005 | -0.03 |
| Additive share of dry matter | 0.0% | 0.163 | +0.00 |
| Supplement share of dry matter | 10.7% | -0.012 | -0.13 |
| 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 | 0.0% | -0.065 | +0.00 |
| Poor-quality meat in recipe | 0.0% | -0.179 | +0.00 |
| Number of poor ingredients | 0 | -0.876 | +0.00 |
| Largest single poor ingredient | 0.0% | 0.060 | +0.00 |
| Undeclared quantities | 21.9% | -0.106 | -2.31 |
| 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) | yes | 0.707 | +0.71 |
| Low meat (under 10% of dry matter) | no | -3.158 | +0.00 |
| 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 | 0.00 | 0.222 | +0.00 |
| 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
- +2 transparency bonus
- Subtotal
- 67.6
- Final score
- 68/100
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.
| Nutrient | As fed (label) | Dry matter (scored) | Score |
|---|---|---|---|
| Protein | 24 | 26.5 (band 18 to 40%) | 93.2 |
| Fat | 11 | 12.2 (band 5.5 to 20%) | 97.5 |
| Fibre | 3.5 | 3.9 (band 0.5 to 5%) | 100 |
Scored over 3 declared nutrients (combined weight 50); undeclared nutrients do not affect the score. Moisture was not declared and was estimated at 9.5% from the food type.
Declared fortification: 9 nutritional additives on the label
- Vitamin A 17,000 IU/kg
- Vitamin D3 1,500 IU/kg
- Vitamin E 70 mg/kg
- Iodine (as Calcium Iodate Anhydrous) 2.5 mg/kg
- Selenium (as Sodium Selenite) 0.1 mg/kg
- Copper (as Cupric Sulphate Pentahydrate) 8 mg/kg
- Iron (as Ferrous Sulphate Monohydrate) 60 mg/kg
- Manganese (as Manganous Oxide) 50 mg/kg
- Zinc (as Zinc Oxide) 100 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 (78.1% of the recipe mass) (voluntary) | 15.6/20 |
| Analytical constituents declared (mandatory) - not on file | 0/15 |
| Additives declared (mandatory) | 10/10 |
| 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.
100/100 · moderate — 1 checkable claim: 1 consistent, 0 contradicted.
Consistent with the label
- "Complete and balanced" — supported by the declared complete and balanced data.
4 further claims on file that we cannot check against the label.
Moderate: every checkable claim is consistent with the declared label.
| Claim | Type | Check | Substantiation |
|---|---|---|---|
| Supports muscle maintenance with quality white fish protein (on page) | Functional | not checkable | Manufacturer assertion |
| Supports joint health with added glucosamine & chondroitin (on page) | Functional | not checkable | Manufacturer assertion |
| Supports skin & coat with omega-3 & 6 fatty acids (on page) | Functional | not checkable | Manufacturer assertion |
| Complete and balanced (on page) | Content | consistent | Manufacturer assertion |
| Grain-free, highly digestible recipe (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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