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
Calculated from serum iron + TIBC: (serum iron / TIBC) × 100. The single most sensitive marker for iron overload — saturation >45% in men or >35% in women warrants hemochromatosis workup. Saturation <20% with low ferritin confirms iron deficiency. No direct peptide effects documented in common stacks. KEY INTERPRETATION: order this and ferritin together routinely; saturation distinguishes 'storage' iron (ferritin) from 'utilization' iron (saturation). Hereditary hemochromatosis affects ~1 in 200-300 Caucasians (homozygous); testing transferrin saturation catches asymptomatic cases before liver damage develops.
Have a recent Transferrin saturation 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.