Do plain cake donuts have sugar? The Nutritional Truth
                                
                                
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                                    4 min read                                
                            
                                According to the USDA, a medium plain cake doughnut contains approximately 10.58 grams of total sugars, confirming that yes, **plain cake donuts have sugar**. While the term "plain" might imply a lack of sweet toppings, it does not mean the absence of sugar within the dough itself.