INS and Insulin resistance: Evidence from two small interventions also fails to support a diabetogenic effect of Se; one study found no significant disturbances in plasma glucose after six weeks of supplementation with 150 μg/d Se as dairy- or yeast-Se [46] while the other, a randomized, controlled trial, found that 200 μg Se/d as yeast-Se for six weeks significantly lowered fasting serum insulin and HOMA-IR (homeostasis model assessment of insulin resistance) [47].