Selenium is used for treating cardiovascular disease, cancer, diabetes, hypothyroidism, autoimmune thyroiditis (Hashimoto’s thyroiditis), osteoarthritis, rheumatoid arthritis (RA), stroke, atherosclerosis, benign prostatic hyperplasia (BPH), and for critical illness.
Selenium is also used for avian flu, swine flu, HIV/AIDS, macular degeneration, allergic rhinitis, infertility, cataracts, gray hair, abnormal pap smears, chronic fatigue syndrome (CFS), chemotherapy toxicity, post-surgical lymphedema, arsenic poisoning, Osgood-Schlatter disease, Keshan disease, mood disorders, and preventing miscarriage.