How is the GI determined?
Glycemic index is assessed by having one or more people eat a specific amountof a single food (usually 50 grams of digestible carbohydrate [total carbohydrateminus fiber]) and then measuring the change in blood sugar levels comparedto the levels achieved after they have eaten a control food such as whitebread. The average change in blood sugar levels over a set period of timerelative to the levels after consumption of the control food is the food’sglycemic index.