Nutrition Diet: How many calories does a skinny person need? A Guide to Healthy Weight Gain
                                
                                
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                                    4 min read                                
                            
                                According to research on metabolism, individual calorie needs can vary by hundreds, if not thousands, of calories per day, even among people with similar body sizes. This makes determining exactly how many calories does a skinny person need a complex, personalized task influenced by factors beyond just body weight.