How many calories are in a slice of jam sponge cake?
                                
                                
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                                    4 min read                                
                            
                                According to nutrition data, a typical 50-gram slice of sponge cake filled with jam can contain approximately 155 to 165 calories. However, the exact amount for a slice of jam sponge cake varies widely depending on the recipe, portion size, and specific ingredients used, such as butter, sugar, and the jam itself.