Phosphorus is a mineral that is found in your bones. According to kidney.org, a normal phosphorus level is between 2.5 and 4.5 mg/dL. Make sure to ask your doctor or dietitian what your last phosphorus level was and keep track of it. Your kidneys are responsible for removing extra phosphorus in your blood. People with CKD or other kidney complications may have trouble removing phosphorus, which can lead to high levels of phosphorus in your body. Having high phosphorus levels can be dangerous to your body, and contribute to pulling calcium out of your bones, making them weak. High phosphorus and calcium levels can lead to dangerous calcium deposits in blood vessels, lungs, eyes, and heart. Controlling phosphorus and calcium in your diet is very important for your overall health.
Phosphorus additives (inorganic phosphorus) can be found in foods like microwaved or ready to eat dinners, canned or bottled beverages, fast food, processed meats and other processed foods. Unlike organic phosphorus, phosphorus that is added to foods is completely absorbed into the body, and must be watched carefully if you're dealing with a low phosphorus CKD diet. Look for "PHOS" on nutrition labels to find phosphorus additives.