How much sugar is in a Long John doughnut?
                                
                                
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                                    4 min read                                
                            
                                According to nutrition data, a typical Long John doughnut can contain between 14 and 21 grams of sugar, depending on the filling and frosting. This places it firmly in the category of a high-sugar treat, but the exact amount of sugar in a Long John doughnut can vary significantly by brand and preparation.