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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.
Tartaric acid is generated by Aspergillus and Penicillium molds and by Candida and Saccharomyces yeasts, with significant dietary sources including grapes, raisins, and red wine.
