Step 1: Understand the Glycaemic Index (GI).
The Glycaemic Index measures how quickly a carbohydrate
-containing food raises blood glucose levels. Foods with a low GI are digested more slowly, while foods with a high GI cause a rapid spike in blood sugar.
- Blackberry (D) has a low GI.
- Whole grains (A) have a moderate GI.
- Brown rice (C) has a higher GI than whole grains but lower than baked potatoes.
- Baked potato (B) has the highest GI.