Your kidneys do a quiet but essential job every minute of every day — filtering waste, balancing fluids, and keeping your body in check. The good news? Protecting them doesn’t require a major overhaul. A handful of simple, evidence-based habits can go a long way toward reducing your risk of kidney disease and preserving your health for years to come.
First, watch your diet — especially sodium.
Aim to limit your sodium intake to about 2,000 milligrams per day.
“Processed foods, fast foods, and snacks like chips can add up quickly, often containing hundreds of milligrams in a single serving,” said Dr. Ann Kathleen Gamilla-Crudo with the Division of Nephrology and Hypertension in the Department of Internal Medicine at The University of Texas Medical Branch (UTMB). “Choose fresh foods when possible, use salt sparingly, and keep water as your primary beverage.”
It’s also important to eat protein in moderation, as excessive protein intake can put added strain on the kidneys over time, she said.
Second, be cautious with over-the-counter pain medications.
Nonsteroidal anti-inflammatory drugs, or NSAIDs, such as ibuprofen and naproxen, can be harmful to the kidneys when used frequently or over long periods, especially without medical supervision.
“If you find yourself needing these medications regularly, it’s important to talk with a healthcare provider to address the underlying issue,” Gamilla-Crudo said.
Third, maintain a healthy weight and manage chronic conditions.
“Obesity increases the risk of high blood pressure, diabetes, and metabolic syndrome, all of which are leading causes of chronic kidney disease,” she said. “Maintaining a healthy weight, staying active, and controlling blood pressure and blood sugar are some of the most effective ways to protect kidney function.”
Fourth, know your family history.
Some kidney diseases run in families. If you have a family history of kidney disease, high blood pressure, or diabetes, you may be at higher risk.
“Being aware of that risk allows you and your healthcare provider to monitor your kidney health more closely and take action early if needed,” Gamilla-Crudo said.
Fifth, invest in preventive care.
Establish regular medical care early in adulthood and stay consistent. Routine checkups, including blood pressure monitoring, blood tests, and urine tests, can detect early signs of kidney disease before symptoms appear.
“The earlier a problem is identified, the more effectively it can be managed,” she said.
Taking care of your kidneys doesn’t require drastic changes — just consistent, informed choices over time. Small steps now can make a lasting difference in your long-term health.