Foods that are low in potassium and assist individuals in lowering their potassium levels include chicken, canned tuna, carrots, apples, peaches, asparagus, broccoli, corn, squash and zucchini, according to Healthline. Pasta and rice are also particularly low in potassium, but tomato sauce is high in potassium.
Individuals with kidney problems need to monitor how much potassium they include in their diet, reports Healthline. This is because the kidneys regulate potassium, and if a person's kidneys are not working properly, they are unable to properly flush potassium from the body. To avoid potassium build up, a person with kidney disease should have a diet that includes between 1,500 and 2,000 milligrams of potassium per day.
While it is important to include low-potassium foods in a person's diet if they suffer from kidney disease, it is also important to avoid high-potassium foods such as potatoes, bananas, whole grains, milk and tomato products. Other foods like mangoes, papayas, pomegranates, prunes, raisins, dried beans and peas, artichokes, spinach and red meat are also high in potassium and should be avoided. Additionally, people with kidney problems should limit their coffee intake to one cup per day, according to Healthline. A certain amount of potassium is needed by the body to maintain its correct fluid and electrolyte levels.