How many calories should I eat a day at 42?
                                
                                
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                                    4 min read                                
                            
                                According to the Dietary Guidelines for Americans, daily calorie requirements can vary significantly based on individual characteristics like age and activity level. This is especially true when asking, "how many calories should I eat a day at 42?" as metabolic changes in middle age play a key role in determining your energy needs for maintenance, weight loss, or weight gain.