Chronic kidney disease (CKD) Archive

The No. 1 health problem for the kidneys is chronic kidney disease (CKD), an irreversible decline in kidney function. People often don't notice any signs of trouble with their kidneys until chronic kidney disease has already occurred. People at high risk for CKD should have annual tests of kidney function. Adopting certain habits can help protect the kidneys, such as limiting alcohol intake, not smoking, staying hydrated, and not overusing over-the-counter pain medications.

People who lose weight with a portion-controlled diet and exercise may be able to reverse their diabetes. When that happens, their risk of heart disease and kidney disease declines, according to a 2024 study.

According to a 2023 study, people who consumed 25% or more of their daily calories from added sugars had an 88% higher risk of developing kidney stones compared with those who kept their added sugar intake to less than 5% of their daily calories.

The human body has excess capacity — that is, our organs have more reserve than most of us will ever need. Why are we built with this natural redundancy? And which body parts can safely fail or be removed without impairing health?

Kidney function declines with age in some people. A heart-healthy diet and lifestyle will protect your kidneys. Once kidney function reaches a certain low level, medication and other steps to protect the kidneys may be necessary.

Men prone to kidney stones should drink plenty of water, get adequate calcium, reduce sodium, limit animal protein, and avoid foods that could make kidney stones more likely to form. Dietary restrictions depend on the stones the person tends to form.

More than one in seven adults has chronic kidney disease, yet many of them aren't aware of the problem. Early-stage kidney disease often has no symptoms, but the condition slowly and silently worsens over time. The two most common causes of chronic kidney disease—high blood pressure and diabetes—are also leading risk factors for heart disease, which means the two diseases often overlap. Most people know their blood pressure and cholesterol values, but few are familiar with the tests used to assess kidney health. They include serum creatinine, estimated glomerular filtration rate, and urine protein tests.

An estimated one in 11 Americans has a kidney stone at some point in life. The larger a kidney stone, the more likely it will block urine flow and need treatment. Smaller stones may pass on their own. Drinking plenty of fluids can help prevent kidney stones.

Drinking water and changing your diet are just some ways to avoid kidney stones. See the full list here.