Feb 17, 2026Selenium: Thyroid Function, Antioxidant Enzymes, Cancer Prevention Evidence, and Toxicity RiskSelenium is an essential trace mineral and key component of glutathione peroxidase and selenoprotein P. It has the strongest evidence base in thyroid autoimmunity (Hashimoto's) and antioxidant enzyme function. The SELECT trial found no cancer prevention benefit from selenium in replete populations — and excess is toxic.
Jan 23, 2026Sulforaphane and NRF2: Broccoli Sprout Extract, Detoxification, and Cancer Prevention EvidenceSulforaphane is the most potent food-derived NRF2 activator. Broccoli sprout extract concentrates glucoraphanin (sulforaphane precursor) while myrosinase is needed for conversion. Clinical evidence for cancer chemoprevention and detoxification support is emerging.