The bioactive Glygopeptide compounds in Tongkat Ali have been proven to increase free testosterone and decrease SHBG levels in human medical trials. The official party line of the American Medical Assn is actually there's no diabetes (measurable sugar affect), then there's no sugar problem. As is a fact of life, they're WRONG! The problem is virtually always a sugar problem. Of course, Big Pharma doesn?t would love you to understand your cause is.