Which Nutrient Provides Most of the Energy in Breast Milk?
                                
                                
                                •
                                
                                
                        
                                    
                                    4 min read                                
                            
                                Breast milk is a dynamic and complex fluid, with its composition naturally adapting to a baby's specific and changing needs. Around half of the total energy that an infant receives from mature breast milk is provided by a single, powerful macronutrient: fat.