Is Tabasco Really 0 Cal? The Surprising Truth Behind the Label
                                
                                
                                •
                                
                                
                        
                                    
                                    3 min read                                
                            
                                According to U.S. FDA regulations, a product containing fewer than 5 calories per serving can be legally labeled as having 'zero calories'. This rule is why the nutritional information for Original Tabasco lists zero, but it doesn't mean the sauce is completely devoid of energy.