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L-SelenomethionineHigh BioavailabilityNon-GMOA Dietary SupplementVegetarian/VeganKosherHalalHow It Works: Selenium is an essential trace mineral that is necessary for the production of the enzyme glutathione peroxidase a potent free radical scavenger. Selenium is important for endocrine health and is especially critical for proper thyroid and prostate function. It is also known to support the maintenance of normal immune system function and colon health. This product is in its naturally-occurring form and is appropriate for vegetarians.