INGREDIENT
Selenium
An essential trace mineral, added in tightly controlled amounts.
Why It Turns Up In Dog Food
- Part of the enzymes that defend cells against oxidative damage, and needed for thyroid hormone function.
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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