What's the difference between low glycemic index and low glycemic load?

A Little vs A Lot: The glycemic index is a number representing the ability of a food, relative to that of glucose, to increase the level of glucose in the blood. Low glycemic index foods will increase your blood sugar {glucose} a little and high glycemic index foods will increase your blood sugar a lot. Here is a good source that describes the glycemic index: http://nutritiondata.Self.Com/topics/glycemic-index.