Reference ranges
Optimal ranges are tighter than standard lab ranges and reflect functional-medicine targets, not the populations they were derived from. Reference bands depend on sex, age, and circumstance — Juno's lab analysis layers your profile context onto the printed range when you paste a value.
Peptide relevance
The primary autoantibody marker for autoimmune thyroid disease — Hashimoto's thyroiditis (most common cause of hypothyroidism) and Graves' disease both show elevated TPO Abs. Positive TPO Abs predict future hypothyroidism even with currently-normal TSH; worth tracking if family history of autoimmune thyroid disease or if TSH is trending upward. No direct peptide effects in common stacks. Test ONCE if negative — antibody levels rarely fluctuate meaningfully day-to-day; recheck only if symptoms or TSH change. POSITIVITY is more important than the absolute number. Thyroglobulin antibodies (Tg Abs) are the companion test for full autoimmune thyroid screening — order both for a complete autoimmune workup.
Have a recent TPO antibodies (thyroid peroxidase) value?
Paste it on the lab analysis page. Juno reads your active stack + (if shared) your medications and conditions, and surfaces plausible contributors with citations. Doesn't diagnose.
Sign-in required. The analysis is saved to your private history and audit-logged.