Sodium is an element which can be used to regulate blood pressure and fluid retention. High blood pressure, kidney disease and sodium are often related. Sodium is found in almost all of our foods, but we obtain most of our intake from salt in preserved and canned foods and salt added to food at the table or in cooking. Potassium is an element found in muscles and red blood cells and is necessary for the proper functioning of the heart. The amount needed by the body will vary and depends upon body size, kidney function, and prescribed medications.
Potassium is found in many foods.
Phosphorus is an element that combines with oxygen and calcium to help build bones. If your kidneys are not able to remove excess phosphorus, the level of phosphorus in your blood may become too high. A high blood phosphorus level may cause you to lose calcium from your bones. This may weaken your bones and cause them to break easily. Eating fewer foods that are high in phosphorus will help control the phosphorus in your blood.