Which food gives the highest calories? An Exploration of Calorie Density
                                
                                
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                                    4 min read                                
                            
                                A gram of fat contains 9 calories, more than double the 4 calories found in a gram of carbohydrates or protein. This fact explains why pure oils and fats are fundamentally the highest-calorie food source, offering a concentrated energy punch that significantly influences dietary intake.