Salt is an essential ingredient in foods and it we can deal without that in our daily diet even though consuming too much of it isn't good and also not advised by medical practicioners when a person is battling with some kind of illness.Yes, we need salt, we can't eat properly if the food is tasteless but too much of it food cannot also be swallowed. Apply only some granules to food. Since humans need salt therefore it's a very good business.