Phosphorus is a mineral found in many foods. It works with calcium and vitamin D in your body to keep your bones healthy and strong. Healthy kidneys keep the right amount of phosphorus in your body, but when your kidneys are not working well, phosphorus can build up to dangerous levels in your blood.

When you have too much phosphorus in the blood, your body will pull calcium from the bones in an attempt to match the amount of phosphorus in the blood, causing bones to become weak and brittle. This condition is called hyperphosphatemia.

Many people with kidney disease need to limit the amount of phosphorus they eat.  Depending on your stage of kidney disease, your doctor may also prescribe a medicine called a phosphate binder. Phosphate binders help to keep phosphorus from building up in your blood. Although phosphate binders help control the amount of phosphorus in your body, you will still need to watch how much phosphorus you eat.

For more on managing phosphorus and tips for choosing low-phosphorus foods read the following AKF blog post.

To learn more about managing your phosphorus in real-life situations, like shopping in a grocery store or eating in a restaurant, watch the following videos.

Phosphorus and kidney disease

Phosphorus and kidney disease - Grocery shopping

Phosphorus and kidney disease - Dining out