Why are zero sugar drinks still sweet?
                                
                                
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                                    4 min read                                
                            
                                According to the U.S. Food and Drug Administration (FDA), a product can be labeled "zero sugar" if it contains less than 0.5 grams of sugar per serving. So why are zero sugar drinks still sweet? The answer lies in the complex world of non-nutritive sweeteners, which are far sweeter than sugar and engage the same taste receptors in our mouths.