How Many Calories Are in One Whole Grilled Onion?
                                
                                
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                                    5 min read                                
                            
                                According to nutrition data, a medium raw onion (approx. 110 grams) contains about 44 calories. Understanding how many calories are in one whole grilled onion, however, depends heavily on the cooking method, specifically whether fats like oil or butter are added during preparation. Grilling transforms the onion's flavor profile, bringing out its natural sugars and creating a caramelized sweetness that is a low-calorie yet impactful addition to any meal.