Getting To Know Glycemic Index

The glycemic index itself is a ranking (0-100 score, the lower the better) which classifies foods based on the degree they raise blood sugar levels during digestion. Foods with a high glycemic index (GI) tend to be absorbed rapidly, which cause a dramatic rise in blood sugar levels since they're digested and broken down very quickly.
By contrast, foods with a low GI only have a mild effect on insulin and blood sugar, take longer to digest because they aren't comprised of simple carbohydrates or refined sugars, and have a more balanced digestion with only gradual rise in blood sugar and insulin. This makes you feel fuller for a longer period of time, prevents insulin crashes and binges, and promote healthy lipid and triglyceride levels.

This site tells us which are the food that has high, medium or low GI. Useful site for me, who is Type 1.

http://www.southbeach-diet-plan.com/glycemicfoodchart.htm

Basically, the idea is that low GI is good for us. However, when we have hypo, low GI food is definitely a no no....