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Ingredient glossary

Collagen in dog food

The structural protein of skin, joints and connective tissue, often added hydrolysed for easier absorption. A sensible joint- and coat-support extra.

68/100quality score / 100Good quality
25foods list it on the label
60.9/100their average ODF Score

Found in 25 foods

The highest-scoring foods on our directory with this ingredient on the label.

Browse the full directory

Same family, own scores - the colour tells you at a glance.

DHA 85 Green-lipped mussel 82 Taurine 80 Algae 78 Chondroitin 78 Glucosamine 78

How this score is used

Every ingredient's quality score feeds the ODF Score of every food that lists it, weighted by label position - the formula is public, down to the last penalty.

How our rating works

This is label analysis, not veterinary advice - if your dog has a health condition, talk to your vet before switching foods.

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