INGREDIENT
Ferrous Sulfate Monohydrate
A hydrated form of ferrous sulfate used as an iron supplement.
Why it turns up in dog food
- Supplies the iron needed to carry oxygen in the blood, in a stable dry form.
An ingredient on its own tells you very little.
What matters is how much of it there is and where it sits in the list. That is why we weigh
the top five rather than reacting to any single name further down.
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