What kind of lettuce has the fewest calories?
                                
                                
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                                    4 min read                                
                            
                                A single cup of shredded iceberg lettuce contains as few as 8 calories, making it a frontrunner for the absolute lowest-calorie leafy green. But is this crisp, hydrating option the best choice, or is there another kind of lettuce that offers a better nutritional profile while still having a very low-calorie count?