How many calories should a 40-year-old consume? An essential nutrition guide
                                
                                
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                                    3 min read                                
                            
                                By age 40, your basal metabolic rate (BMR) naturally begins to slow, with some studies indicating a decline of 1-2% per decade. Understanding **how many calories should a 40**-year-old consume is crucial for effective weight management and sustaining a healthy, energetic lifestyle as your body’s needs shift.