INS and Insulin resistance: Regarding insulin, AS had a significant effect on reducing fasting insulin serum level (3 trials, n = 139, MD = −3.50 UI/ml, 95% CI (−6.59 to −0.41), p = 0.03) and HOMA insulin resistance (3 trials, n = 139, MD = −1.06, 95% CI (−2.03 to −0.09), p = 0.03).