What is kJ to calories and why does it matter?
                                
                                
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                                    3 min read                                
                            
                                For decades, the energy content of food has been a central topic in health and wellness conversations, but a confusing detail is that different countries use different units. Whether you see kilojoules (kJ) or calories (often referring to kilocalories or kcal) on a food label, both are measuring the same thing: the energy your body gets from food.