The supplementation of Syzygium cumini (L.) Skeels seed extract in impaired fasting glucose population can decrease both FBG and HbA1c levels, which also correlates with the previous studies in type II diabetes. The efficacy to decrease HbA1c in the pre-diabetic patients is higher when compared with diabetic patients. Therefore, early treatment in prediabetic patients may prevent the progression to diabetes or delay the existed condition. Syzygium cumini (L.) Skeels extract should be one of the alternatives for patients with impaired fasting glucose level.