I-FABP levels showed positive associations with IL-6 (B = 32.85, p = 0.002) and TNF-α (B = 13.2, p = 0.03), but an inverse association with age at the beginning of the study (B = −10.03, p = 0.04) (adR2 = 0.39), irrespective of GDM diagnosis (p = 0.26). This evidence concerns the gene FABP2 and gestational diabetes.