Which mushroom has the lowest calories? An overview of low-calorie fungi for a healthy diet
                                
                                
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                                    3 min read                                
                            
                                Boasting only around 15 to 22 calories per cup, white button mushrooms are generally considered to be the variety with the lowest calories. This makes them an excellent addition to any diet focused on healthy eating and weight management, providing volume and nutrients without the high caloric cost.