Resveratrol (Figure 3C), a flavonoid molecule found at high levels in the skin of grapes (Vitis vinifera) and cranberry (Vaccinium macrocarpon) [106], reversed the reduction in Slc2A4 levels observed in T2D mice by preventing tri-methylation at lysine 9 of histone 3 (H3K9me3) in the enhancer segment of Slc2a4. The gene discussed is SLC2A4; the disease is type 2 diabetes mellitus.