Only small amounts of sodium occur naturally in food. In fact, most of the sodium you eat is added during food processing and preparation. Canned soups and vegetables and many boxed or frozen processed foods are very high in sodium, as are processed meats, such as bacon, sausage and ham.
Healthy adults need only a small amount of sodium daily. The recommended daily limit is 2,400 mg. This is the amount found in about 1 teaspoon of salt. Most Americans consume about 4,000 to 5,000 mg of sodium a day. Too much sodium may contribute to a rise in your blood pressure, putting you at risk of heart attack and stroke.
Control sodium by limiting processed foods. Also cut back on the salt you add while cooking and at the table. As you use less salt, your preference for salt will decline, allowing you to enjoy the taste of the food itself.
(Source: Mayo Clinic website – www.mayoclinic.com)