How Come Mustard is 0 Calories? The Truth Behind the Nutrition Label
                                
                                
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                                    2 min read                                
                            
                                According to the USDA, a teaspoon of prepared yellow mustard contains only about 3 calories, yet many bottles list "0 calories" on their nutrition labels. This discrepancy often leads people to wonder how come mustard is 0 calories, exposing a common misconception about nutrition labeling in the food industry.