What is the Glycemic Index? |
Over the last 30 years, research into food and blood glucose response has completely changed our carbohydrate classification system.
It has been learned that it is impossible to predict the impact on blood glucose levels by certain foods; instead, people are fed carbohydrate foods, and the response is measured.
This response is known as the Glycemic Index (GI), it is a measure of how quickly carbohydrate foods are digested and absorbed and ranks carbohydrate foods according to their impact on blood sugar (glucose) levels: as indicted by elevated
blood glucose.
Foods with a high GI are absorbed quickly into the bloodstream and cause a rapid rise in blood glucose levels. At the same time, foods with a low GI are broken down more slowly over time and keep blood glucose levels more stable (Remember that low is slow!).