Nutrition chart on a can of soup show 840mg of sodium that is equal to how many teaspoons of salt?
Technically, A teaspoon is not a unit of weight or quantity, but of volume; i.e. 500 mg of sodium x (57.5/23.0) = 1250 mg of salt.In this case 840 mg X (57.5/23.0) = 2100 mg of salt (approximately)