“…This review revealed that many of the predictive models for this pregnancy disease derive from data acquired by instrumental techniques, such as liquid or gas chromatography coupled to mass spectrometry (LC-MS or GC-MS, respectively), nuclear magnetic resonance (NMR) spectroscopy, and polymerase chain reaction (PCR), among others [ 17 ]. More recently, new articles have been published in the context of GDM diagnosis based on the same techniques, i.e., LC-MS [ 18 , 19 , 20 , 21 ], GC-MS [ 22 ], NMR spectroscopy [ 23 ], and PCR [ 24 , 25 , 26 , 27 ]. Methods based on these techniques are very time consuming, as they require tedious sample preparation procedures or prolonged instrumental runs.…”