Aviform Supplex Progen
Supplement · complementary
Our verdict
Is Aviform Supplex Progen 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 air-dried supplement for dogs of all life stages, with collagen, glucosamine and hyaluronic acid as the main ingredients.
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.
Who is this food for?
Suits
- Labelled by the manufacturer for all lifestages
- Grain-free: no grain ingredients listed
- Doesn't list chicken, beef, turkey, lamb, fish, 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. Find foods that fit your dog.
Nutrition and feedingProtein 92.50% · Fat 0.37%
Typical analysis (as fed)
| Nutrient | As fed |
|---|---|
| Protein | 92.50% |
| Fat | 0.37% |
| Fibre | 0.10% |
| Ash | 0.80% |
Additives & feeding info
Feeding and storage
Feeding guide
Small Dog - up to 10kg: Maintenance 2.5g, Remedial 5g. Medium Dog - 10kg to 25kg: Maintenance 5g, Remedial 10g. Large Dog - over 25kg: Maintenance 10g, Remedial 20g. Level scoop provides approximately 5g.
Additives declared on the label
Nutritional additives
Vitamin C (3a300) 35,200mg; all-rac-alpha-tocopheryl acetate (3a700) 50mg
Technological additives
Rosemary Extract 5:1 500mg
Ingredients (3)100% of the recipe is estimated
Estimated composition
- supplement 100.0%
| # | As declared | Matched | Label reading | Declared % | Est. % |
|---|---|---|---|---|---|
| 1 | Collagen (hydrolysed) | Collagen | supplement · good | - | 40.0 |
| 2 | D-Glucosamine HCL | Glucosamine | supplement · good | - | 33.3 |
| 3 | Hyaluronic acid | Hyaluronic acid | supplement · good | - | 26.7 |
- 1. Collagen (hydrolysed)40.0% estimated
- 2. D-Glucosamine HCL33.3% estimated
- 3. Hyaluronic acid26.7% estimated
Trust and sourceNo recalls recorded in our database · checked 2026-09-02
Brand and contact: Aviform
- Website
- https://www.aviform.co.uk/
- Contact page
- www.aviform.co.uk
Trust and provenance
- Recall history
- No recalls recorded in our database
- Label data last checked
- 2026-09-02
- Product page
- www.aviform.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.
Brand and retailer reviews
External platform ratings are not scores for this individual recipe.
Trustpilot: 4.6/5 · 6,139 reviews
53 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 | 0.9 | 9.191 | +8.70 |
| Supplement share of dry matter | 100.0% | -0.012 | -1.22 |
| Undeclared quantities | 100.0% | -0.106 | -10.56 |
| Low meat (under 10% of dry matter) | yes | -3.158 | -3.16 |
| Processing multiplier | 1.08 | 33.786 | +36.49 |
| Processing: Dry Air Dried | yes | 6.331 | +6.33 |
Show all 40 components
| Component | Input | Coefficient | Contribution |
|---|---|---|---|
| Base score | - | 30.909 | +30.91 |
| Average ingredient quality | 0.9 | 9.191 | +8.70 |
| Meat share of dry matter | 0.0% | 0.096 | +0.00 |
| Carb share of dry matter | 0.0% | -0.115 | +0.00 |
| Oil share of dry matter | 0.0% | -0.092 | +0.00 |
| 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 | 100.0% | -0.012 | -1.22 |
| 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 | 100.0% | -0.106 | -10.56 |
| 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 | 1.08 | 33.786 | +36.49 |
| 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 | yes | 6.331 | +6.33 |
| Processing: Dry Cold Pressed | no | -6.713 | +0.00 |
| Processing: Dry Baked | no | -6.713 | +0.00 |
| Processing: Dry Extruded | no | -6.713 | +0.00 |
| 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
- +0.28
- Additives declared on label
- +2 transparency bonus
- Subtotal
- 69.8
- 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.
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 (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) - 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
- "Made in the UK" — supported by the declared made in the UK data.
14 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 |
|---|---|---|---|
| Targets Joints at the Source (on page) | Functional | not checkable | Manufacturer assertion |
| Supports Full Joint Structure (on page) | Functional | not checkable | Manufacturer assertion |
| Easy, No-Fuss Daily Use (on page) | Functional | not checkable | Manufacturer assertion |
| Made in the UK (on page) | Content | consistent | Manufacturer assertion |
| Supplex Progen is a specialist collagen dog joint supplement (on page) | Content | not checkable | Manufacturer assertion |
| designed to provide medium to high levels of joint support (on page) | Functional | not checkable | Manufacturer assertion |
| The formula centres on Hydrolysed Collagen (on page) | Content | not checkable | Manufacturer assertion |
| providing targeted joint support directly where it is needed (on page) | Functional | not checkable | Manufacturer assertion |
| oral administration of Hydrolysed Collagen can contribute to preserving joint health and maintaining mobility (on page) | Functional | not checkable | Manufacturer assertion |
| Hydrolysed Collagen Peptides also support muscles, tendons and ligaments (on page) | Functional | not checkable | Manufacturer assertion |
| offering a broader structural benefit (on page) | Functional | not checkable | Manufacturer assertion |
| Supplex Progen also contains Hyaluronic Acid (on page) | Content | not checkable | Manufacturer assertion |
| a natural component of cartilage and synovial fluid (on page) | Content | not checkable | Manufacturer assertion |
| helps cushion joints and maintain lubrication (on page) | Functional | not checkable | Manufacturer assertion |
| and Vitamin C (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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