If you're like many people, most of the sodium in your diet comes from processed and prepared foods, such as canned vegetables, soups, deli meats and frozen foods. Another major source of sodium is condiments. One tablespoon of soy sauce, for example, has a whopping 1,005 milligrams of sodium. To scale back the amount of sodium in your diet, eat more fresh foods and fewer processed foods. You can also eliminate salt from many recipes, especially if you add herbs or spices for extra flavor instead.