INS and Insulin resistance: Glycemic indices [fasting plasma glucose (FPG), fasting insulin, quantitative insulin sensitivity check index (QUICKI), homeostasis model assessment for insulin resistance (HOMA-IR)]. A reduction in FPG level was noted in eleven RCTs with 686 participants [53,61,63,64,65,67,68,72,73,75,78] (WMD: −3.942, 95%CI: −6.810, −1.074 mg/dL; p = 0.007; I2 = 93.7%).