Selenium Excess

ByLarry E. Johnson, MD, PhD, University of Arkansas for Medical Sciences
Reviewed/Revised Jul 2023 | Modified Aug 2023
VIEW PROFESSIONAL VERSION

    Selenium excess is rare and is caused by consuming too much of the mineral selenium.

    (See also Overview of Minerals.)

    Selenium occurs in all tissues. SeleniumSelenium may help protect against some cancers. Selenium is also necessary for the thyroid gland to function normally.

    selenium

    The diagnosis of selenium excess is based on symptoms. Blood or urinaryselenium levels can be measured.

    Treatment of selenium excess involves reducing selenium consumption.

    Drugs Mentioned In This Article
    quizzes_lightbulb_red
    Test your KnowledgeTake a Quiz!
    Download the free Merck Manual App iOS ANDROID
    Download the free Merck Manual App iOS ANDROID
    Download the free Merck Manual App iOS ANDROID