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What should I know before taking selenium?

You should know that most people get enough selenium from the foods they eat, so supplements might give you too much, which can have toxic effects. In addition, selenium can affect existing medical conditions, so if you have any of the following, make sure to tell your doctor: stomach or kidney problems, iodine deficiency, male infertility, or a history of skin cancer.

If you have allergies to foods, medicine, or animal products, you should read the product label carefully. Supplements can be created using plant or animal products to which you might be allergic and can cause an allergic reaction.

If you are pregnant or breastfeeding, you should know that research has not yet confirmed whether large doses of selenium are safe for the mother or the baby.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.