What is the reference range for Selenium?

The standard reference range for Selenium is Whole blood selenium 70–150 µg/L, geography- and diet-dependent.. Reference ranges vary by laboratory and assay platform — interpret in context of the issuing laboratory's stated range.

Which tests measure Selenium?

Selenium is measured in 1 test on BiomarkersLabs.com, including Blood Spot ICPMS Toxic and Essential Elements.

Biomarker Reference · Se

What does the Selenium test measure?

Selenium (Se) is a clinical biomarker used in heavy-metals-toxicology assessment. Selenium is an essential trace element incorporated into selenoproteins, including glutathione peroxidases and thioredoxin reductases, that protect against oxidative stress. It is measured in 1 laboratory test on BiomarkersLabs.com.

Reference Range: Whole blood selenium 70–150 µg/L, geography- and diet-dependent.
Units: µg/L
Measured In: 1 test
Category: Heavy Metals

Functional medicine optimalFunctional targets often 120–150 µg/L for optimal selenoprotein expression.

What is Selenium?

Selenium is an essential trace element incorporated into selenoproteins, including glutathione peroxidases and thioredoxin reductases, that protect against oxidative stress. Blood selenium reflects recent intake; long-term status is better assessed by erythrocyte or toenail selenium.

Why is Selenium measured?

Deficiency impairs immune function, thyroid hormone metabolism, and antioxidant defence and is endemic in low-selenium soils. Excess selenium (>400 µg/L) causes selenosis with hair loss, nail changes, and neuropathy. Selenium supplementation in deficient populations may reduce cardiovascular and cancer risk, though trial data are mixed.

Reference ranges

Standard reference: Whole blood selenium 70–150 µg/L, geography- and diet-dependent.
Functional medicine optimal: Functional targets often 120–150 µg/L for optimal selenoprotein expression.
Units: µg/L

Reference ranges vary by laboratory and assay platform. Interpret in context of the issuing laboratory's stated range.

Tests that measure Selenium

1 test on BiomarkersLabs.com include this biomarker.

BML-HMT-010Comprehensive

Blood Spot ICPMS Toxic and Essential Elements

Selenium reference range in this test: Whole blood selenium 70–150 µg/L, geography- and diet-dependent.

Related clinical conditions

Related Biomarkers

Frequently measured alongside

LeadPb1 test MercuryHg1 test CadmiumCd1 test ArsenicAs1 test AluminiumAl2 tests ZincZn3 tests CopperCu2 tests MagnesiumMg2 tests

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