Which food has a glycemic index of 100? The Ultimate Guide
                                
                                
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                                    5 min read                                
                            
                                The glycemic index (GI) is a ranking system for carbohydrates, and pure glucose (a type of sugar) is the benchmark standard with a GI of 100. This value signifies the maximum potential for a carbohydrate to raise blood sugar levels. While no whole food naturally matches this speed, several processed foods come very close.