So, what is the Glycemic Index? There seems to be some mystery surrounding the Glycemic Index (or 'GI'), and we wanted to clear it up for you! Simply put, the GI is a system that ranks foods on a scale from 1 to 100 based on their effect on blood sugar levels. When we digest carbohydrates ('carbs'), they break down, enter our bloodstream, and raise our blood sugar levels. Foods that break down quickly, like soda, tend to raise blood sugar levels quickly and have a high GI val