The kidneys

Your kidneys are two powerful organs that filter waste and extra fluid from your blood, help control blood pressure, balance minerals, and support healthy red blood cell production. At The Liver and Kidney Hope Foundation in Henderson, Nevada, kidney health is half of our mission—not a side topic.

The liver and kidneys work closely together. Advanced liver disease can contribute to kidney failure, while fatty liver disease and hepatitis may raise kidney health risks. They also share common risk factors, including diabetes, high blood pressure, and obesity. Because kidney disease can be silent, learning your risks and getting tested early can help protect both organs.

Frequently asked questions about kidney health

About 1 in 7 U.S. adults has chronic kidney disease, and many do not know it. Explore clear, reliable answers to common kidney questions below. This information supports—not replaces—care from your primary care provider or a nephrologist.

How do I know if my kidneys are healthy?

Kidney disease often has no symptoms in its early stages, so feeling well does not always mean your kidneys are healthy. Ask your health care provider about two simple tests: an estimated glomerular filtration rate (eGFR) blood test and a urine albumin-to-creatinine ratio (UACR) test. Together, these tests can show how well your kidneys filter blood and whether protein is leaking into your urine.

What are the early warning signs of kidney problems?

Early kidney disease may be silent. As problems progress, possible signs include swelling in the feet, ankles, hands, or around the eyes; foamy or bloody urine; changes in how often you urinate; fatigue; nausea; itching; or trouble concentrating. These symptoms can have many causes, so speak with a health care provider promptly rather than self-diagnosing.

Am I at risk for kidney disease?

You may have a higher risk if you have diabetes, high blood pressure, obesity, heart disease, a family history of kidney disease, or a history of acute kidney injury. Older age and certain autoimmune conditions can also increase risk. Liver conditions matter too: fatty liver disease, hepatitis, and advanced liver disease can affect kidney health. Ask your provider whether eGFR and UACR testing is right for you.

What do eGFR and UACR kidney test results mean?

eGFR estimates how well your kidneys filter blood; a lower number may indicate reduced kidney function. UACR measures albumin, a protein, in urine; higher levels may signal kidney damage. One result does not tell the whole story—your provider will consider repeat testing, your health history, medications, blood pressure, and other lab results.

How are the liver and kidneys connected?

The liver and kidneys help keep the body in balance. Serious liver disease can reduce blood flow to the kidneys and, in some cases, lead to kidney injury or failure. Conditions such as fatty liver disease and hepatitis may occur alongside diabetes, high blood pressure, and obesity—risk factors that can also harm the kidneys. Caring for one organ supports the other.

What should I eat or avoid for kidney health?

Nutrition needs vary based on your kidney function, health conditions, and treatment plan. In general, choose more minimally processed foods, fruits and vegetables as appropriate for your care plan, fiber-rich foods, and lower-sodium options. If you have chronic kidney disease, do not make major changes to potassium, phosphorus, protein, or fluid intake without guidance from your provider or a renal dietitian.

Can medications or supplements hurt my kidneys?

Some medicines, including certain anti-inflammatory pain relievers, and some herbal or dietary supplements may affect kidney function or interact with prescriptions. Do not stop prescribed medication on your own. Bring a complete list of medicines, over-the-counter products, vitamins, and supplements to your provider or pharmacist before starting something new. The Liver and Kidney Hope Foundation does not sell health products, so our education is unbiased.

How much water should I drink?

Fluid needs are personal and can change with kidney disease, heart or liver conditions, medications, activity, and weather. Many people can drink regularly throughout the day, but some people need to limit fluids. Follow your provider’s instructions instead of forcing extra water. Seek urgent medical help for severe symptoms such as chest pain, difficulty breathing, confusion, fainting, or very little urine.

Take an early step for your kidney health

Ask your provider about eGFR and UACR kidney tests—especially if you have diabetes, high blood pressure, liver disease, or a family history of kidney disease. The Liver and Kidney Hope Foundation also offers free education guides, community support through local chapters, Social Work resource connections, and kidney awareness events. Start with our free Early Signs of Kidney Disease guide, then consider joining a support group for ongoing encouragement.