A huge meal, even if it contains no sugar, can raise the blood sugar more than a candy
bar. Getting back to the glycemic index, it can be confusing sometimes because different
studies give different indexes for the same foods. For example, some studies have found
potatoes to have a high glycemic index (making them unadvisable for people with
hypoglycemia) while others recommended potatoes as one of the best foods for keeping
blood sugar stable!