How many carbs are in 1 donut? A nutritional breakdown
                                
                                
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                                    5 min read                                
                            
                                A single medium-sized glazed donut can contain around 31 grams of carbohydrates, primarily from sugar and refined flour. This means the number of carbs are in 1 donut varies significantly depending on its size and type, with options ranging from plain to heavily filled and frosted.