Figure 2.

Serum insulin levels and HOMA-IR in overweight (shown as a red line) or non-overweight (shown as a black line) men at baseline and 8 weeks after piceatannol supplementation (a) or placebo (b). p values between two groups are shown, and n.s. denotes no significance. Change rate of serum insulin levels and HOMA-IR in overweight (c) or non- overweight (d) men at baseline and after 8 weeks of piceatannol supplementation or placebo. p values between two groups are shown, and n.s. denotes no significance.