How much sugar is in a sub? Uncovering the nutritional truth
                                
                                
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                                    3 min read                                
                            
                                On average, a six-inch sub can contain anywhere from 5 to over 15 grams of sugar, but the exact amount varies dramatically by ingredients. So, how much sugar is in a sub depends heavily on your choices, from the bread and meat to the seemingly innocent sauces and toppings.