Selenium Supplement Antioxidant Support for Immunity & Thyroid Health Selenium is one of the few nutrients that directly controls how your body handles oxygen at the cellular level. Every time your cells produce energy, they generate peroxides as a byproduct. That PRDX6 dictates ferroptosis sensitivity by directing cellular selenium utilization: Molecular Cell Frontiers Selenium at the Neural Barriers: A Review Role of Selenium and Vitamin E in Maintaining Healthy Muscles Nature's Way Selenium Non Yeast Source Potent Antioxidant 200 mcg per Serving 100 Capsules Vitacost