INS and Insulin resistance: Figure 2 shows that GC supplementation for six months improved FBG, HbA1c %, serum insulin and insulin resistance (HOMA-IR) in GC group; FBG was decreased (116.34 ± 28.00 mg/dL vs. 139.16 ±  47.07; p = 0.000), HbA1c% (6.05 ± 0.73 vs. 6.78 ± 1.30; p = 0.000), insulin (14.09 ± 4.76 IU/L vs. 17.97 ± 4.99; p = 0.000) and HOMA-IR (4.04 ± 1.74 vs. 6.29 ± 3.28; p = 0.000) compared to baseline levels in GC group.