Is there 0 calories in salt? The complete nutritional guide
                                
                                
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                                    4 min read                                
                            
                                According to the USDA National Nutrient Database, a single teaspoon of table salt contains exactly zero calories. The fact that there are 0 calories in salt can be misleading, as its nutritional impact extends far beyond energy content and can significantly influence body weight and metabolic health.