Ingredient database › Red 40
Is Red 40 good or bad in dog food?
Red 40 is a colouring agent and rates as Avoid in our analysis.
What is Red 40?
Red 40 is a colouring agent used in dog food. On a label it may also appear as: red 40, red dye 40, fd&c red no. 40, allura red.
How it affects the WoofScore
Where an ingredient sits in the list matters — ingredients are listed by weight, so something near the top counts far more than something near the end. Paste your dog food's full ingredient list into the checker for an overall A–F grade.
Informational only — not veterinary advice. Always consult your vet about your dog's diet.