.svg)
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.
2-Oxoisocaproic acid is another leucine breakdown product, working alongside the other branched-chain amino acid markers, with processing dependent on B-vitamin-powered enzymes.
