Too much fluid causes edema or swelling. Edema can make the heart work harder. This can contribute to heart failure. Table salt is a major source of sodium and must be eliminated. One teaspoon of salt equals 2,300 milligrams of sodium.
Most foods contain various amounts of sodium.
Processed or prepared foods often contain high amounts of sodium. Cooking without salt. Removing the salt shaker from the table. Using herbs and spices to season foods. Reading food labels for sodium content.