According to Dr. Oz, healthy adults need approximately 2,300 mg of salt a day to keep our muscles and nerves in good working order. (That’s about one teaspoon.) It isn’t so much that salt itself is bad, we just tend to eat too much of it. 75% of the sodium Americans consume is found in processed food. Examples are: 6 chicken nuggets: 580mg, 1 cup chicken noodle soup: 930mg, and the mack daddy of them all..PIZZA- 2 slices: 1,280 mg of salt!