Ingredient database › Menadione (Vitamin K3)
Is Menadione (Vitamin K3) good or bad in dog food?
Menadione (Vitamin K3) is an additive and rates as Watch in our analysis.
In short
Synthetic vitamin K banned in some human uses; debated in pet food.
What is Menadione (Vitamin K3)?
Menadione (Vitamin K3) is an additive used in dog food. On a label it may also appear as: menadione, menadione sodium bisulfite, vitamin k3, menadione sodium bisulfite complex.
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.