Thyroglobulin
Specialistalso tg
What it isThyroglobulin is the storage protein within the thyroid follicle where T4 and T3 are made. Small amounts leak into circulation.
DoesActs as a tumor marker after thyroid cancer treatment — detectable thyroglobulin after total thyroidectomy and radioiodine ablation suggests residual or recurrent disease.
GoodUndetectable in post-treatment thyroid cancer patients signals successful eradication.
BadDetectable thyroglobulin in those settings flags recurrence; also rises in benign thyroid conditions.
- Standard
- 1.4–78 ng/mL.
- Optimal
- Pattern-based, depends on clinical context (narrow target)
- Modifiers
- Thyroglobulin antibodies invalidate the result.
How to optimize
- Lifestyle
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- Diet
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- Supplements
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- Peptides
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- Drugs
- TSH suppression with levothyroxine in differentiated thyroid cancer follow-up.
Reference ranges are general adult lab norms; optimal ranges are editorial picks from the longevity literature — not medical advice. Always interpret results with your physician.
within Thyroid