How Much Selenium is Too High? Understanding the Risks of Overconsumption
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4 min read
According to the National Institutes of Health, the Tolerable Upper Intake Level (UL) for selenium is 400 micrograms (mcg) per day for adults, a threshold that, when routinely exceeded, can lead to adverse health effects. This essential trace mineral is vital for health, but a narrow therapeutic window exists between a beneficial dose and a harmful one.
