Understanding Brain Fuel: What Happens to Glucose in the Brain?
                                
                                
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                                    5 min read                                
                            
                                Despite its small size, accounting for only 2% of body weight, the human brain consumes roughly 20% of the body's total glucose supply. This exceptional demand underscores the critical importance of a steady fuel source and begs the question: what happens to glucose in the brain once it arrives?