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Minerals
Sodium selenite
Inorganic selenium compound used as a dietary supplement and in animal feeds to provide essential selenium, an essential trace element.
Mineral or nutrientUpdated Feb 14, 2026
Health score+2.0
-5Good5
Water guidelines
- Legal limit
- Not specified
- Health guideline
- 400 ug/day
Food and supplement guidelines
- Legal limit
- Not specified
- Health guideline
- Not specified
Risks
Toxicity at high doses including selenosis, ingestion toxicity, narrow safety margin
Benefits
Essential trace element for antioxidant enzymes and thyroid function
References
Waters containing Sodium selenite
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