Selenium containing 15 Mer Peptides with High Glutathione Peroxidase like Activity ScienceDirect Selenium is a vital trace mineral that quietly supports some of the body's most essential functions, yet it's often overlooked. If you're taking a high quality multivitamin, you may be getting some selenium. From Selenium to Selenoproteins: Synthesis, Identity, and Their Role in Human Health Nature's Way Selenium Non Yeast Source Potent Antioxidant 200 mcg per Serving 100 Capsules Vitacost Selenium, a Micronutrient That Modulates Cardiovascular Health via Redox Enzymology