Thyroid
Free Thyroxine Index
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Thyroid
Triiodothyronine (T3)
T3 is your active thyroid hormone—it drives metabolism, body temperature, energy, and even mood. It’s more potent than T4, and when T3 is low, everything can feel sluggish. When it’s high, things speed up: metabolism, energy, even anxiety.
- Unit
- ng/dL
- Health impacts
- Mood · Metabolic Health · Energy · Fat Loss
In your dashboard
Your trend, against your optimal range.
Example data · how your trend would appear once you test
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