How many calories in a 20 oz vanilla milkshake?
                                
                                
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                                    4 min read                                
                            
                                According to nutritional data, a single 20 oz vanilla milkshake from a major fast-food chain can contain more calories than a standard cheeseburger, often exceeding 700 calories. This high-calorie density highlights the importance of checking nutritional information when enjoying this classic frozen treat.