Low glycemic index food is:

GLYCEMIC INDEX -glycemic index which measures the time course of postprandial glucose concentrations from a graph* Glycemic index of complex carbohydrate is low because of slow digestion and slow absorption* Glycemic index of carbohydrate is low when its combine with fat , protein and fiber * Foods that have a low glycemic index are considered to be more beneficial since they cause less fluctuation in insulin secretion