INGREDIENT
Zinc Sulfate Heptahydrate
A hydrated form of zinc sulfate used as a trace mineral supplement.
Why it turns up in dog food
- Supplies zinc for skin, coat and immune function in a stable, well absorbed 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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