Do any vegetables have zero calories? The science behind 'negative-calorie' foods
                                
                                
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                                    3 min read                                
                            
                                The concept that specific foods, particularly vegetables, possess zero or 'negative' calories has interested dieters for years. This theory, however, is a common misconception because all edible foods contain some form of energy. Many are incredibly low in energy density and packed with nutrients, even if no vegetable has zero calories, making them a cornerstone of a healthy diet.