38 Volunteers with impaired fasting glucose (100 – 125 mg/dl) were randomized into two groups; the experiment group received Syzygium cumini (L) Skeels seed extract 3 g/d (1.5 g bid), and the placebo group received methylcellulose 3 g/d (1.5 g bid). Fasting blood glucose levels were tested at week 0, 4, 8, and 12 while the HbA1c were tested at week 0 and 12. There was one subject from the placebo group who dropped off from the study