Why do Tic Tacs say 0 calories? The FDA's rounding rules explained
                                
                                
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                                    5 min read                                
                            
                                Each individual Tic Tac contains approximately 1.9 calories, yet the label boldly states zero. So, why do Tic Tacs say 0 calories on the packaging? The reason lies in the Food and Drug Administration's (FDA) specific labeling requirements, which allow for nutritional rounding for products with very small serving sizes.