The blood glucose lowering effect of insulin is due to the facilitated uptake of glucose following binding of insulin to receptors on muscle and fat cells and to the simultaneous inhibition of glucose output from the liver.
Insuliini veresuhkrutaset langetav toime tuleneb sellest, et seondudes lihas - ja rasvarakkude insuliiniretseptoritele, soodustab ta glükoosi omastamist ning samal ajal inhibeerib glükoosi sekretsiooni maksast.