Ingredient A-Z

Menadione sodium bisulfite complex

vitamin supplementalso called: synthetic vitamin K, vitamin K3

What it is

A synthetic form of vitamin K used as a supplement.

Why it gets discussed

One of the most searched individual ingredients in cat food. Much of the discussion concerns specific cases that differ substantially from ordinary supplemental inclusion; both the defenders and critics tend to cite narrow evidence.

Where it sits on the label

Very small inclusion, near the very end.

Foods in our database that list menadione sodium bisulfite complex

Foods in our database that do not list it

"Do not list" means the ingredient does not appear on the label text we transcribed for that product. It is not a certification, and recipes change - always confirm on the current packaging.

This page is composition reference material, not advice about feeding your cat. Discuss ingredient-level nutrition questions with your veterinarian.