Method: GC-MS (Gas Chromatography/Mass Spectrometry) measuring organic acid metabolites in urine (CLIA 17D0919496); not cleared or approved by the FDA. Results in mmol/mol creatinine. Not a stand-alone diagnosis; should be interpreted in clinical context.
3-Methylglutaric acid is produced when the body breaks down leucine, one of the three branched-chain amino acids important for energy production and muscle maintenance.



