Selenomethionine
Selenium for Dogs
Supports antioxidant protection and healthy immune function in dogs

Selenium for dogs: powering one specific antioxidant enzyme
Selenium's role is narrower than most antioxidant nutrients: it's a direct component of glutathione peroxidase, one specific enzyme, which is why Essential pairs it with a broader set of antioxidant ingredients rather than relying on it alone.
A narrow but essential role
Selenium is a key component of antioxidant enzymes such as glutathione peroxidase, contributing to protecting cells from oxidative stress and supporting normal immune responses. A study in weaned Beagle puppies found dietary selenium supplementation improved both antioxidant activity and immune function at the amount tested.
Selenium has a narrower safety margin than many minerals, meaning the gap between a useful amount and an excessive one is smaller. That's why Essential includes it at a small, measured amount per serving rather than leaving total intake to guesswork.
Research notes
References for further reading
Questions
Selenium FAQ
EVERY DOG AGES DIFFERENTLY.
Take the longevity assessment to find where your dog stands and which formula fits your dog. Takes 2 minutes.
Start →




