Pelargonidin can be found in berries such as ripe raspberries, blueberries, blackberries, cranberries and saskatoon berries [213] Pelargonidin treatment counteracts hyperglycemia and relieves the oxidative stress including hemoglobin (Hb) induced iron mediated oxidative reactions by lowering the glycation level and free iron of Hb [214]. Here, GSTM1 is linked to Hyperglycemia.