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
Reflects both kidney function AND protein intake / hydration / muscle catabolism. BUN/creatinine ratio adds context: >20 suggests dehydration or upper GI bleeding; <10 suggests low protein intake or hepatic dysfunction. High-protein diets (common among peptide users targeting recomp or muscle gain) routinely elevate BUN above the standard range without indicating kidney disease — interpret in context. Dehydration acutely raises BUN more than creatinine. No direct peptide effects in common stacks. GH-axis peptides (CJC-1295 / Ipamorelin / Tesamorelin / MK-677) can transiently raise BUN via increased nitrogen turnover; not clinically significant if creatinine + eGFR are normal.
Have a recent BUN (blood urea nitrogen) 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.