Selenium Dosage and Testing

A commonly presented general selenium dose range is 50 to 200 micrograms per day. The article presents plasma selenium around 100 to 135 as a general target and around 120 as a sweet spot. If selenium levels are unknown, the article suggests a conservative approach of about 100 micrograms per day of selenium yeast or about two Brazil nuts. Plasma selenium testing is recommended when selenium status is uncertain. Long-term selenium intake above 50 to 200 micrograms per day is discouraged unless medically supervised.