Royal Canin Joint & Ageing Chews
Supplement · complementary
Our verdict
Is Royal Canin Joint & Ageing Chews a good dog food?
This is a supplement, not a complete diet, so it is not scored on our 1-100 scale. The ingredient breakdown below shows what is in it; a supplement should be fed alongside, not instead of, a complete diet.
Complementary supplement for adult dogs, with dehydrated poultry proteins, wheat and glycerine as the main ingredients.
92% 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 adult dogs
- Doesn't list beef, lamb, venison, pork, duck as ingredients
Consider something else if:
- Your dog avoids chicken: the label lists dehydrated poultry proteins
- Your dog avoids turkey: the label lists dehydrated poultry proteins
- Your dog avoids fish: the label lists green-lipped mussel
- Your dog avoids grain: the label lists wheat
- 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.
What the label declares
Active ingredients and quantities as printed by the manufacturer. We record them as stated; we do not assess whether they are effective. Supplements are not scored.
| Active | Declared amount | Basis |
|---|---|---|
| Vitamin C | 7,900 mg/kg | per kg |
| Vitamin E | 12,660 mg/kg | per kg |
Nutrition and feedingProtein 19.60% · Fat 9.20%
Typical analysis (as fed)
| Nutrient | As fed |
|---|---|
| Protein | 19.60% |
| Fat | 9.20% |
| Fibre | 1.40% |
| Ash | 9.90% |
| Moisture | 18% |
Energy: 313.1 kcal/100g
Additives & feeding info
Feeding and storage
Storage
To be stored in a cool, dry place.
Feeding guide
Please adhere to the number of pieces per day indicated in the feeding guidelines. <1.5kg: 1/2 piece; 1.5-7kg: 1 piece; 8-12kg: 2 pieces; 13-17kg: 3 pieces; 18-22kg: 4 pieces; 23-27kg: 5 pieces; >28kg: 6 pieces.
Additives declared on the label
Nutritional additives
Vitamin C: 7900 mg; Vitamin E: 12660 mg
Technological additives
Clinoptilolite of sedimentary origin: 8.1 g; Preservatives
Ingredients (11)92% of the recipe is estimated
Estimated composition
- meat 27.1%
- supplement 20.7%
- carb 19.7%
- other 9.8%
- oil 8.4%
- veg 8.0%
- fibre 6.4%
| # | As declared | Matched | Label reading | Declared % | Est. % |
|---|---|---|---|---|---|
| 1 | Dehydrated poultry proteins | Dehydrated Poultry Proteins | meat · good | - | 11.9 |
| 2 | wheat flour | Wheat | carb · poor | - | 11.3 |
| 3 | glycerol | Glycerine | other · medium | - | 10.7 |
| 4 | rice flour | Rice flour | carb · medium | - | 10.1 |
| 5 | marine zooplankton meal | Meat Meal | meat · medium | - | 9.5 |
| 6 | dried tomato pulp (8%) | Tomato | veg · good | 8 | 8.0 |
| 7 | algal oil Schizochytrium sp. | Algae Oil | oil · good | - | 8.9 |
| 8 | hydrolysed animal proteins | Hydrolysed Animal Protein | meat · medium | - | 8.3 |
| 9 | New Zealand green-lipped mussel powder | Green-Lipped Mussel | supplement · good | - | 7.7 |
| 10 | cellulose powder | Powdered Cellulose | fibre · poor | - | 7.1 |
| 11 | minerals | Vitamins and minerals | supplement · medium | - | 6.5 |
- 1. Dehydrated poultry proteins11.9% estimated
- 2. wheat flour11.3% estimated
- 3. glycerol10.7% estimated
- 4. rice flour10.1% estimated
- 5. marine zooplankton meal9.5% estimated
- 6. dried tomato pulp (8%)8% declared8.0% estimated
- 7. algal oil Schizochytrium sp.8.9% estimated
- 8. hydrolysed animal proteins8.3% estimated
- 9. New Zealand green-lipped mussel powder7.7% estimated
- 10. cellulose powder7.1% estimated
- 11. minerals6.5% estimated
Trust and sourceNo recalls recorded in our database · checked 2026-09-09
Brand and contact: Royal Canin
Trust and provenance
- Recall history
- No recalls recorded in our database
- Label data last checked
- 2026-09-09
- Product page
- www.royalcanin.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.
Brand and retailer reviews
External platform ratings are not scores for this individual recipe.
603 reviews on this product · 4.7/5
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
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 | 0.4 | 9.191 | +4.07 |
| Carb share of dry matter | 20.2% | -0.115 | -2.32 |
| Oil share of dry matter | 9.4% | -0.092 | -0.87 |
| Vegetable share of dry matter | 8.2% | -0.005 | -0.04 |
| Supplement share of dry matter | 21.7% | -0.012 | -0.26 |
| Other share of dry matter | 5.6% | -0.375 | -2.10 |
| Recipe graded poor | 16.7% | -0.065 | -1.09 |
| Number of poor ingredients | 2 | -0.876 | -1.75 |
| Largest single poor ingredient | 10.3% | 0.060 | +0.62 |
| Undeclared quantities | 92.0% | -0.106 | -9.71 |
| Low meat (under 10% of dry matter) | yes | -3.158 | -3.16 |
| 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 | 0.4 | 9.191 | +4.07 |
| Meat share of dry matter | 0.0% | 0.096 | +0.00 |
| Carb share of dry matter | 20.2% | -0.115 | -2.32 |
| Oil share of dry matter | 9.4% | -0.092 | -0.87 |
| Vegetable share of dry matter | 8.2% | -0.005 | -0.04 |
| Additive share of dry matter | 0.0% | 0.163 | +0.00 |
| Supplement share of dry matter | 21.7% | -0.012 | -0.26 |
| Other share of dry matter | 5.6% | -0.375 | -2.10 |
| Unrecognised share of dry matter | 0.0% | -0.027 | +0.00 |
| Recipe graded poor | 16.7% | -0.065 | -1.09 |
| Poor-quality meat in recipe | 0.0% | -0.179 | +0.00 |
| Number of poor ingredients | 2 | -0.876 | -1.75 |
| Largest single poor ingredient | 10.3% | 0.060 | +0.62 |
| Undeclared quantities | 92.0% | -0.106 | -9.71 |
| Prints ingredient percentages | no | 0.000 | +0.00 |
| Complete diet | no | 2.294 | +0.00 |
| 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 | 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
- 42.7
- Final score
- 43/100
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.
This is not a complete diet, so the 1-100 rating does not apply to it. Read the recipe breakdown above as ingredient-quality context only.
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
Not applicable to complementary food. FEDIAF reference ranges apply to complete diets.
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 (8% of the recipe mass) (voluntary) | 1.6/20 |
| Analytical constituents declared (mandatory) | 15/15 |
| Additives declared (mandatory) | 10/10 |
| 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) | 5/5 |
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 |
|---|---|---|---|
| New Zealand green-lipped mussel powder (GLM) (1.4%) (on page) | provenance | not checkable | Manufacturer assertion |
| Fully traceable ingredients (on page) | provenance | not checkable | Manufacturer assertion |
| designed to support your dog's joint comfort and promote healthy ageing (on page) | Functional | not checkable | Manufacturer assertion |
| include green-lipped mussel to help maintain cartilage health (on page) | Functional | not checkable | Manufacturer assertion |
| EPA and DHA – Omega-3 fatty acids that help support joint function (on page) | Functional | not checkable | Manufacturer assertion |
| vitamins C and E to help support healthy ageing (on page) | Functional | not checkable | Manufacturer assertion |
| 89% of owners reported satisfaction with ROYAL CANIN® Joint & Ageing Adult Chews after just 2 months of use (on page) | Functional | not checkable | Manufacturer assertion |
| 89% of owners are satisfied (on page) | Functional | not checkable | Manufacturer assertion |
| Helps support joint comfort and healthy ageing (on page) | Functional | not checkable | Manufacturer assertion |
| Suitable for adult dogs (on page) | Content | not checkable | Manufacturer assertion |
| With green-lipped mussel + EPA+DHA (on page) | Content | not checkable | Manufacturer assertion |
| tomato powder (a source of lycopene) (on page) | Content | not checkable | Manufacturer assertion |
| formulated by vets and approved by dogs (on page) | Content | not checkable | Manufacturer assertion |
| science-driven blend of ingredients backed by over 50 years of research and observation in canine nutrition (on page) | Content | not checkable | Manufacturer assertion |
| Complementary feed for dogs (on page) | Content | not checkable | Manufacturer assertion |
| Committed to quality and food safety (on page) | Content | not checkable | Manufacturer assertion |
| SCIENTIFICALLY PROVEN INGREDIENTS (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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