Sodium Selenite
Medical Safety Data Sheet for Sodium Selenite
An inorganic form of selenium with known toxicity. Studies have shown it may cause tumors, genetic
mutations, interfere with reproduction, and cause birth defects.  Although it is an essential
antioxidant when found in food as biologically active selenium, inorganic selenium as selenite has a
pro-oxidative effect (
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"Highly Toxic. May be fatal if inhaled, ingested or absorbed through the
skin. Expiremental carcinogen. May cause reproductive effects..."