What is the Glycemic Index?
The glycemic index (GI) is an old-school tool in the nutrition world. Basically, it’s a scale used to measure how quickly blood sugar goes up after a particular food has been digested. The scale is organized from 0 to 100, with quickly digested foods scoring highest. The GI of a particular food can be affected by numerous factors including how much fiber it contains. Since foods with more fiber take longer to break down, they will have a lower GI.
The GI was established back in the early 1980s. Despite its age, it’s still used very commonly as the foundation for diets and meal planning for weight loss, heart heath and diabetes.