How Much Soup Can One Person Eat? A Guide to Healthy Portion Sizes
                                
                                
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                                    3 min read                                
                            
                                According to the National Institutes of Health, a healthy adult stomach can expand to hold between 1 and 1.5 liters of food and liquid at maximum capacity. This physiological fact is a crucial starting point for understanding exactly how much soup can one person eat, but it's not the whole story. Factors from the type of soup to individual appetite play a significant role in determining an appropriate serving.