A 5g serving of stone ground mustard is said to contain 5 calories, yet the nutrition label is rounded down to 0 carbs, 0 fat, 0 protein. What would the macros look like if the serving size were an entire bottle?
Stone ground mustard is often just water, mustard seeds, vinegar, salt, and spices, so in that case, the macro ratios would be roughly equivalent to that of mustard seeds, since the other ingredients contribute minimal calories. But if your mustard includes other ingredients such as sugar, etc, that would alter the macros.