What is the difference between fat-free and 2 percent milk?
                                
                                
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                                    2 min read                                
                            
                                An 8-ounce glass of fat-free (skim) milk contains about 83 calories, while the same amount of 2 percent milk has 120 calories. This primary difference in calorie count stems directly from the amount of fat present in each type, distinguishing how they fit into different dietary plans.