Compared with the placebo, probiotic supplementation resulted in significant decreases in fasting plasma glucose (FPG) (-5.3 ± 6.7 vs. +0.03 ± 9.0 mg/dL, p = .01), serum high-sensitivity C-reactive protein (hs-CRP) (-2.2 ± 2.7 vs. +0.5 ± 2.4 μg/mL, p < .001), plasma malondialdehyde (MDA) concentrations (-0.1 ± 0.8 vs. +0.5 ± 1.5 μmol/L, p = .03) and MDA/TAC ratio (-0.0003 ± 0.0008 vs. +0.0009 ± 0.002, p = .004), and a significant increase in total antioxidant capacity (TAC) levels (+65.4 ± 103.3 vs. -37.2 ± 143.7 mmol/L, p = .002).