How many calories should I eat a day at 28? A personalized guide
                                
                                
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                                    3 min read                                
                            
                                According to the Dietary Guidelines for Americans 2020-2025, adult females aged 19 to 30 typically need between 1,800 and 2,400 calories per day, while males in the same age range need 2,400 to 3,000. However, these are broad averages, and the exact number depends on several individual factors.