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All biomarkers
Body composition

DEXA lean mass, total

Measured in kg

Reference ranges

Optimal
50 – 80 kg
functional-medicine target
Standard
30 – 110 kg
lab reference range

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

Whole-body lean mass. GH-axis peptides (CJC-1295/ipamorelin, tesamorelin, MK-677) documented to increase LBM in trials. BPC-157 / TB-500 — no DEXA-confirmed effect. Tirzepatide / semaglutide can cause LBM loss alongside fat loss; recent retatrutide data suggests less LBM loss than semaglutide.

Have a recent DEXA lean mass, total 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.

Analyze a value

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