How many calories are in 1 spring onion?
                                
                                
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                                    3 min read                                
                            
                                According to Healthline, a medium-sized young onion, often interchangeably called a spring onion, green onion, or scallion, contains only around 5 calories. This remarkably low calorie count makes the spring onion a popular, flavorful addition to a wide range of dishes without adding significant caloric load.