Is there zero calorie ranch?
                                
                                
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                                    3 min read                                
                            
                                According to the U.S. Food and Drug Administration (FDA), a product can be labeled "zero calorie" if a single serving contains less than 5 calories. This regulation is how some products, including certain types of ranch, can be marketed as zero calorie, even if they aren't truly devoid of all energy.