T3 Uptake

Measures thyroid hormone binding capacity

2/22Providers
Thyroid FunctionCategory
24-39%Reference

Limited Availability

2 providers include this

Category

Thyroid Function

Reference Range

24-39%

What is T3 Uptake?

Measures thyroid hormone binding capacity

Why It Matters

Reflects binding protein availability. Used with total T4 to calculate free thyroxine index. Less commonly used with free hormone assays available.

Reference Range: 24-39%

Which Providers Test T3 Uptake?

Superpower
Included in panel
Vitality Elite
Included in panel

Full Provider Comparison

ProviderIncludesAnnual CostBiomarkers
SuperpowerSuperpower✓$199100+ (150 with ratios)
WHOOP Advanced LabsWHOOP Advanced Labs—$34965
Labcorp OnDemandLabcorp OnDemand—$39830+
Life ExtensionLife Extension—$48640+
EverlywellEverlywell—$46883
Mito HealthMito Health—$349100+
InsideTrackerInsideTracker—$68054
Function HealthFunction Health—$365100+
Marek Health BaseMarek Health Base—$25065
Marek Health ComprehensiveMarek Health Comprehensive—$49570+
Marek Health CompleteMarek Health Complete—$895100+
Marek Health ExecutiveMarek Health Executive—$1950150+
BlueprintBlueprint—$399100+
Quest HealthQuest Health—$Varies75+
Empirical HealthEmpirical Health—$190100+
Oura Health PanelsOura Health Panels—$9950
SiPhox HealthSiPhox Health—$12560
Hims Labs BaseHims Labs Base—$19950
Hims Labs AdvancedHims Labs Advanced—$499120+
HealthspanHealthspan—$418880+
Vitality Blueprint StandardVitality Blueprint Standard—$37585
Vitality Blueprint EliteVitality Blueprint Elite✓$700129

Ready to Test T3 Uptake?

2 providers include this biomarker in their panels

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Frequently Asked Questions

What does T3 Uptake test for?
T3 Uptake is a thyroid function biomarker. Measures thyroid hormone binding capacity The normal reference range is 24-39%.
Which providers include T3 Uptake?
2 of 22 providers include this test:Superpower, Vitality Elite.
How often should I test T3 Uptake?
For most people, testing 2-4 times per year is recommended to establish baseline levels and track trends. Consult your healthcare provider for personalized recommendations.
What is the optimal range?
The standard reference range is 24-39%. Many functional medicine practitioners recommend tighter optimal ranges for peak health. Your ideal range may vary based on age, sex, and health goals.
Why is T3 Uptake important?
Reflects binding protein availability. Used with total T4 to calculate free thyroxine index. Less commonly used with free hormone assays available.

Medical Disclaimer

This information is for educational purposes only and is not medical advice. Always consult with a qualified healthcare provider about your specific health needs.