Josera Adult Herring
Dry Extruded complete
Is Josera Adult Herring a good dog food?
We score it 51/100 (Average). This reflects the ingredient quality, composition and label transparency of the recipe as declared on the label.
Why this score?
This food achieves an overall score of 51 out of 100. Ingredients without printed percentages contributed -13.1 points, while the overall quality of the ingredient list added +9 points. Additionally, the processing format contributed -7 points and the oil and fat content added -1.7 points to the final calculation.
100% of this recipe has no printed percentage. Estimated shares are model estimates, not label facts.
- Recipe51
- NutritionalNot recorded
- Transparency40
- 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 herring, sweet potatoes and salmon oil as the main ingredients.
Why you might choose it
- Single named animal protein: fish.
- Doesn't list grain ingredients.
Why you might not
- Meat makes up an estimated 6% of the dry matter (16% as fed); carbohydrates dominate.
- No analytical breakdown is published.
- 100% of the recipe mass has no printed percentage, so the exact split cannot be verified.
Estimated composition
Typical analysis (as fed)
No analysis recorded yet.
Additives & feeding info
No additives recorded yet.
Storage
Fully recyclable packaging made with a single component so it can be recycled with your home recycling.
Feeding guide
Protein and fat content is moderate so Josera Adult Herring is ideal for normal energy requirements every day. Digestibility of 92–93% means daily feed amounts are very low.
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 | Herring | Herring | meat | good | - | 18.2 |
| 2 | sweet potato | Sweet Potatoes | carb | good | - | 16.9 |
| 3 | salmon oil | Salmon Oil | oil | good | - | 15.6 |
| 4 | yeast cell walls | Yeast | supplement | good | - | 14.3 |
| 5 | L-carnitine | L-Carnitine | supplement | medium | - | 13.0 |
| 6 | taurine | Taurine | supplement | good | - | 11.7 |
| 7 | vitamins C and E | Vitamin | supplement | good | - | 10.4 |
Brand
- Website
- https://josera.com/
- Contact page
- josera.com
Trust and provenance
- Recall history
- No recalls recorded in our database
- Label data last checked
- 2026-08-30
- Scored with
- Model v2 (methodology)
- Product page
- www.josera.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 | +9.00 |
| Meat share of dry matter | 6.2% | 0.116 | +0.71 |
| Carb share of dry matter | 5.2% | -0.113 | -0.58 |
| Oil share of dry matter | 19.1% | -0.088 | -1.68 |
| Supplement share of dry matter | 69.6% | -0.009 | -0.62 |
| Undeclared quantities | 100.0% | -0.131 | -13.09 |
| Complete diet | yes | 1.703 | +1.70 |
| Low meat (under 10% of dry matter) | yes | -1.988 | -1.99 |
| 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 | +9.00 |
| Meat share of dry matter | 6.2% | 0.116 | +0.71 |
| Carb share of dry matter | 5.2% | -0.113 | -0.58 |
| Oil share of dry matter | 19.1% | -0.088 | -1.68 |
| Vegetable share of dry matter | 0.0% | -0.002 | +0.00 |
| Additive share of dry matter | 0.0% | 0.177 | +0.00 |
| Supplement share of dry matter | 69.6% | -0.009 | -0.62 |
| 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 | 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) | yes | -1.988 | -1.99 |
| 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 | 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
- Subtotal
- 51.1
- Final score
- 51/100
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 | 51/100 | current |
| v1 | 50/100 | |
| v1.9 | 51/100 |
Nutritional: declared analysis vs reference ranges
Analytical constituents not declared
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) - not on file | 0/10 |
| 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, Additives 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 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 |
|---|---|---|
| Immune Plus (on page) | Functional | Manufacturer assertion |
| Skin & Coat (on page) | Functional | Manufacturer assertion |
| rich source of omega-3 fatty acids and iodine which optimally support the cardiovascular system, brain function and metabolism (on page) | Functional | Manufacturer assertion |
| SALMON OIL provides valuable OMEGA-3 fatty acids such as DHA and EPA supporting the heart and brain and also contributes to healthy skin and a shiny coat (on page) | Functional | Manufacturer assertion |
| JOSERA IMMUNE PLUS from yeast cell walls which are rich in glucans and MOS (mannan oligosaccharides) which have a prebiotic effect and support the immune system (on page) | Functional | Manufacturer assertion |
| Valuable anti-oxidants such as vitamins C and E help ward off free radicals (on page) | Functional | Manufacturer assertion |
| L-CARNITINE and TAURINE support heart function and encourage fat metabolism (on page) | Functional | Manufacturer assertion |
| EXCEPTIONAL DIGESTIBILITY of 92 – 93% (on page) | Functional | Manufacturer assertion |
| Sweet potato (on page) | Content | Manufacturer assertion |
| Made with 100% herring as the only animal protein source (on page) | Content | Manufacturer assertion |
| added salmon oil delivering valuable DHA and EPA fatty acids (on page) | Content | Manufacturer assertion |
| Single meat protein (on page) | Content | Manufacturer assertion |
| FREE FROM wheat, soya and GM ingredients (on page) | Free-from | Manufacturer assertion |
| Salmon oil Omega 3 (on page) | Content | Manufacturer assertion |
| GLUTEN-FREE recipe (on page) | Free-from | Manufacturer assertion |
| Protein and fat content is moderate (on page) | High/low level | Manufacturer assertion |
| Grain free (on page) | Free-from | Manufacturer assertion |
| FREE FROM artificial flavourings, colourings and preservatives, and dairy and sugar (on page) | Free-from | Manufacturer assertion |
| grain-free complete dog food (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.
Other products from Josera
Alternatives to Adult Herring
Foods in our database that are similar on ingredients, protein, format or price. Scores and figures are from the same deterministic model used everywhere on the site.
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