SULT2A1 and Insulin resistance: -reduced fasting plasma glucose (FPG) (SMD: −0.59, 95% CI −0.99 to −0.19, p < 0.01),-reduced insulin resistance as assessed with the HOMA-IR (SMD: −0.39, 95% CI −0.76 to −0.03, p = 0.03-improved DHEAS levels (SMD: −0.55, 95% CI −0.94 to −0.16, p < 0.01).