Type 2 diabetics given broccoli sprout extract containing 150 μmol sulforaphane for 12 weeks lowered blood glucose levels by 10% compared to placebo.
“Sulforaphane reduces glucose by suppressing liver enzymes that otherwise stimulate the production of glucose. In animals, sulforaphane also attenuated exaggerated glucose production and glucose intolerance by a magnitude similar to that of metformin.”