Dextrose is only added to salt that has potassium iodide added to it: dextrose stabilizes potassium iodide. Salt that does not have potassium iodide added to it does not have dextrose in it. The amount of dextrose in iodized table salt is typically 0.04% (that’s 0.04% - four parts in ten thousand, not four parts in one hundred). That’s why you still see 0g of total carbohydrates per serving in the salt label you show even though the salt has dextrose in it.
I didn’t know that! Thank you for the information