What best describes the glycemic index?

The glycemic index (GI) is a ranking system that measures how quickly carbohydrate-containing foods raise blood glucose levels compared to a reference food, usually glucose or white bread. Foods with a high GI are rapidly digested and absorbed, leading to quick spikes in blood sugar, while low GI foods result in slower, more gradual increases. This index can help individuals, particularly those with Diabetes, make informed dietary choices to manage blood sugar levels effectively.