Is Royal Canin Maxi Adult 5+ a good dog food?
We score it 37/100 (Poor). The main reasons are set out in "Why you might not" below, and every step of the calculation is shown under "How we calculated this score".
Why this score?
This recipe achieves an overall score of 37 out of 100. Being labelled nutritionally complete adds +2.3 points to the total. However, ingredients without printed percentages deducts -10.6, the processing format takes away -6.7, and the carbohydrate content reduces the score by -4.5.
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.
- Recipe37
- Nutritionallow97
- Transparency55
- Safety100
- Evidencemoderate100
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 senior dogs, with dehydrated poultry proteins, unspecified animal fats and oils and maize as the main ingredients.
Why you might choose it
- Nutritionally complete: formulated to be fed as the whole diet.
Why you might not
- 6 poor-graded ingredients make up about 35% of the recipe.
- 100% of the recipe mass has no printed percentage, so the exact split cannot be verified.
Estimated composition
Typical analysis (as fed)
- Protein
- 26%
- Fat
- 17%
- Fibre
- 1.60%
- Ash
- 6.40%
Additives & feeding info
Nutritional additives
Vitamin A: 21800 IU; Vitamin D3: 1000 IU; Iron (3b103): 36 mg; Iodine (3b201, 3b202): 3.6 mg; Copper (3b405, 3b406): 11 mg; Manganese (3b502, 3b504): 47 mg; Zinc (3b603, 3b605, 3b606): 131 mg; Selenium (3b801, 3b811, 3b812): 0.06 mg
Technological additives
Clinoptilolite of sedimentary origin: 10 g; Preservatives; Antioxidants
Storage
To be stored in a cool, dry place.
Feeding guide
DOG IDEAL WEIGHT (kg) | LOW ACTIVITY | MODERATE ACTIVITY | HIGH ACTIVITY 26 | 277 g (2 cup + 7/8 cup) | 320 g (3 cup + 3/8 cup) | 364 g (3 cup + 6/8 cup) 30 | 308 g (3 cup + 2/8 cup) | 357 g (3 cup + 6/8 cup) | 405 g (4 cup + 2/8 cup) 35 | 346 g (3 cup + 5/8 cup) | 400 g (4 cup + 1/8 cup) | 455 g (4 cup + 6/8 cup) 40 | 382 g (4 cup) | 442 g (4 cup + 5/8 cup) | 503 g (5 cup + 2/8 cup) 44 | 410 g (4 cup + 2/8 cup) | 475 g (5 cup) | 540 g (5 cup + 5/8 cup) DOG IDEAL WEIGHT (kg) | CAN | LOW ACTIVITY | MODERATE ACTIVITY | HIGH ACTIVITY 26 | 1 | 178 g (1 cup + 7/8 cup | 222 g (2 cup + 2/8 cup) | 266 g (2 cup + 6/8 cup) 30 | 1 | 210 g (2 cup + 1/8 cup | 258 g (2 cup + 6/8 cup) | 307 g (3 cup + 2/8 cup) 35 | 1 | 247 g (2 cup + 5/8 cup | 302 g (3 cup + 1/8 cup) | 356 g (3 cup + 6/8 cup) 40 | 1 | 284 g (3 cup | 344 g (3 cup + 5/8 cup) | 404 g (4 cup + 2/8 cup) 44 | 1 | 312 g (3 cup + 2/8 cup | 377 g (3 cup + 7/8 cup) | 442 g (4 cup + 5/8 cup)
Reviews
30 reviews on this product · 4.9/5
Who is this food for?
Suits
- Labelled by the manufacturer for senior dogs
- Labelling or feeding guide is aimed at large 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 fish oil
- Your dog avoids grain: the label lists maize / corn
- 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. Use the homepage filter to find foods that fit your dog.
Ingredients (20)
| # | As declared | Matched | Category | Tier | Declared % | Est. % |
|---|---|---|---|---|---|---|
| 1 | Dehydrated poultry proteins | Dehydrated Poultry Proteins | meat | good | - | 6.6 |
| 2 | animal fats | Unspecified Animal Fats and Oils | oil | poor | - | 6.4 |
| 3 | maize | Maize / Corn | carb | medium | - | 6.2 |
| 4 | wheat | Wheat | carb | poor | - | 6.1 |
| 5 | wheat flour | Wheat | carb | poor | - | 5.9 |
| 6 | maize flour | Maize Flour | carb | medium | - | 5.7 |
| 7 | barley | Barley | carb | medium | - | 5.6 |
| 8 | maize gluten | Maize gluten | carb | poor | - | 5.4 |
| 9 | wheat gluten | Wheat Gluten | carb | poor | - | 5.2 |
| 10 | hydrolysed animal proteins | Hydrolysed Animal Protein | meat | medium | - | 5.1 |
| 11 | beet pulp | Beet Pulp | fibre | medium | - | 4.9 |
| 12 | minerals | Vitamins and minerals | supplement | medium | - | 4.8 |
| 13 | fish oil | Fish Oil | oil | good | - | 4.6 |
| 14 | soya oil | Soybean oil | oil | medium | - | 4.4 |
| 15 | yeasts products | Yeast | supplement | good | - | 4.3 |
| 16 | psyllium husks and seeds | Psyllium | fibre | good | - | 4.1 |
| 17 | fructo-oligosaccharides | Fructo-oligosaccharides | supplement | good | - | 3.9 |
| 18 | algal oil Schizochytrium sp. | Algae Oil | oil | good | - | 3.8 |
| 19 | glucosamine from fermentation | Glucosamine | supplement | good | - | 3.6 |
| 20 | hydrolysed cartilage | Hydrolysed Cartilage | supplement | good | - | 3.4 |
Brand
Trust and provenance
- Recall history
- No recalls recorded in our database
- Label data last checked
- 2026-09-09
- Scored with
- Model v3 (methodology)
- 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.
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 v3 on 2026-10-06. 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 | 0.2 | 9.191 | +2.12 |
| Carb share of dry matter | 38.8% | -0.115 | -4.46 |
| Oil share of dry matter | 20.7% | -0.092 | -1.90 |
| Supplement share of dry matter | 20.0% | -0.012 | -0.24 |
| Recipe graded poor | 29.0% | -0.065 | -1.89 |
| Number of poor ingredients | 5 | -0.876 | -4.38 |
| Largest single poor ingredient | 6.4% | 0.060 | +0.38 |
| 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 | -0.35 | 0.222 | -0.08 |
| 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 | 0.2 | 9.191 | +2.12 |
| Meat share of dry matter | 0.0% | 0.096 | +0.00 |
| Carb share of dry matter | 38.8% | -0.115 | -4.46 |
| Oil share of dry matter | 20.7% | -0.092 | -1.90 |
| Vegetable share of dry matter | 0.0% | -0.005 | +0.00 |
| Additive share of dry matter | 0.0% | 0.163 | +0.00 |
| Supplement share of dry matter | 20.0% | -0.012 | -0.24 |
| 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 | 29.0% | -0.065 | -1.89 |
| Poor-quality meat in recipe | 0.0% | -0.179 | +0.00 |
| Number of poor ingredients | 5 | -0.876 | -4.38 |
| Largest single poor ingredient | 6.4% | 0.060 | +0.38 |
| 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 | -0.35 | 0.222 | -0.08 |
| 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
- 37.5
- Final score
- 37/100
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 | 26 | 28.7 (band 18 to 40%) | 99.3 |
| Fat | 17 | 18.8 (band 5.5 to 20%) | 100 |
| Fibre | 1.6 | 1.8 (band 0.5 to 5%) | 86.9 |
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: 8 nutritional additives on the label
- Vitamin A: 21800 IU
- Vitamin D3: 1000 IU
- Iron (3b103): 36 mg
- Iodine (3b201, 3b202): 3.6 mg
- Copper (3b405, 3b406): 11 mg
- Manganese (3b502, 3b504): 47 mg
- Zinc (3b603, 3b605, 3b606): 131 mg
- Selenium (3b801, 3b811, 3b812): 0.06 mg
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) | 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) | 5/5 |
Capped at 60: mandatory items missing (Analytical constituents declared).
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
- "nutritionally complete and balanced formula" — supported by the declared complete and balanced data.
3 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 |
|---|---|---|---|
| contains highly digestible proteins and a balanced blend of fibres to help support good digestive health (on page) | Functional | not checkable | Manufacturer assertion |
| specially crafted with a combination of minerals and nutrients to help support healthy bones and joints (on page) | Functional | not checkable | Manufacturer assertion |
| Enriched with a complex of essential vitamins, this formula is designed to help maintain your adult dog’s vitality (on page) | Functional | not checkable | Manufacturer assertion |
| nutritionally complete and balanced formula (on page) | Content | consistent | 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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