INGREDIENT
Copper Sulfate
An inorganic copper salt used as a trace mineral supplement.
Why It Turns Up In Dog Food
- Supplies copper for iron metabolism, connective tissue and coat pigment. Absorbed better than copper oxide, though less well than a chelate.
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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