Common salt-free foods include blueberries, avocados, tomatoes and lentil beans. Although these foods are naturally salt-free, they may contain added sodium when canned or when served in a prepared form.
Other common fruits that are salt-free include cherries, apples, oranges and nectarines, but fruit juices and purees of these types may contain sodium. Some fruits contain trace amounts of natural salt and are typically approved for salt-free diets, including pineapples, mangoes, strawberries, bananas and watermelon.
Additional salt-free vegetables include squash, radishes, eggplant and asparagus. Canned versions of vegetables are not salt-free unless labeled as such. Varieties of vegetables labeled "no salt added" are not always salt-free, and customers should read these labels carefully. Vegetables with trace amounts of natural salt include cauliflower, green bell peppers, broccoli, corn and lettuce.
Lentil beans, when prepared from dried form, are salt-free. Salt-free dried beans are soaked in water overnight before being cooked. In addition to lentil beans, salt-free foods that supply protein or grains include raw nuts and olive, peanut and sunflower oils. Most dried pastas are also salt-free, as long as they are not prepared in salted water. Rice, oats and plain air-popped popcorn are other legume- and grain-based foods that are salt-free.