What is Glycemic Index? (GI)

The Glycemic Index (GI for short) measures the rate at which carbohydrate foods raise blood glucose (blood sugar) levels, and classifies the foods into three groups – low, moderate or high GI.

Carbohydrates that breakdown quickly during digestion have the highest glycemic indexes. Their blood sugar response is fast and high. Carbohydrates that breakdown slowly, releasing glucose gradually into the blood stream, (keeping you feeling fuller for longer) have low glycemic indexes.

Glycemic Index info:

• Low GI foods decrease hunger
• Low GI means a smaller rise in blood sugar and can help control established diabetes
• Low GI diets can help people lose weight and lower blood lipids
• Low GI diets can improve the body's sensitivity to insulin
• High GI foods can help re-fuel carbohydrate stores after exercise

Low GI foods are digested and absorbed slowly and glucose is released into the bloodstream over a long period of time. This may extend endurance and allow for a longer exercise session or improved performance in an endurance event.

High GI foods are digested and absorbed quickly and raise blood sugar levels rapidly over a short period of time. They can be used during or after an event to provide energy quickly.

Back to Articles

THE INFORMATION IN THIS DOCUMENT IS PROVIDED FOR PERSONAL USE, AND IS NOT AUTHORIZED TO BE COPIED OR DISTRIBUTED FOR COMMERCIAL PURPOSES.