Prioritizing Kidney Health:
Blog Date: March 25th 2025
In recognition of World Kidney Day, Nephrology Today sat down with Dr. Andrew Kowalski, a board-certified nephrologist and interventional nephrologist at NANI, to discuss the often-overlooked importance of kidney health. While heart and brain health frequently take center stage in wellness discussions, the kidneys play a crucial, behind-the-scenes role—filtering waste, balancing electrolytes, producing hormones essential for blood formation, and contributing to bone health. Dr. Kowalski stresses that kidney health deserves greater attention, as lifestyle choices significantly impact these vital organs. “What you eat and how much you move can either safeguard your kidneys or accelerate damage,” he explains. He encourages individuals to take proactive steps to support kidney function, emphasizing that prevention is always preferable to treatment. Dr. Andrew Kowalski emphasizes the strong link between diet, muscle mass, and inflammation in chronic kidney disease (CKD). The typical Western diet, filled with processed foods and environmental toxins like microplastics, places a heavy metabolic burden on the kidneys. With nearly half of the 3,700 compounds the kidneys filter daily coming from environmental sources, Dr. Kowalski advises prioritizing fresh, whole foods over boxed or canned items. Whether following a vegan, vegetarian, pescatarian, or Mediterranean diet, the key is to focus on minimally processed meals. In addition to diet, physical activity plays a crucial role in kidney health. Movement helps combat chronic inflammation and prevents muscle wasting, a common complication of CKD. Even small increases in daily activity—such as walking 2,000–3,000 extra steps—have been linked to lower mortality rates. Dr. Kowalski encourages an 80/20 approach to diet (80% nutrient-dense foods, 20% flexibility) while incorporating enjoyable movement into daily routines. Historically, low-protein diets were recommended to slow CKD progression, but modern nephrology recognizes the importance of maintaining muscle mass. Dr. Kowalski suggests a balanced protein intake of about 0.8 grams per kilogram of body weight, emphasizing lean meats, fish, poultry, and plant-based proteins while limiting highly processed red meats. He also notes that newer medications, such as SGLT2 inhibitors and GLP-1 agonists, help reduce kidney strain, making moderate protein intake more viable. Regarding hydration, Dr. Kowalski dispels the myth that everyone needs eight glasses of water per day, advising individuals to listen to their thirst instead. Overhydration can be harmful, particularly for those with impaired kidney function. Finally, he underscores the importance of early detection of kidney disease, as hypertension and diabetes are leading causes of CKD. Since kidney damage often progresses silently, regular blood and urine tests are critical for those at risk. Notably, foamy or bubbly urine can signal protein leakage and should prompt medical evaluation. By focusing on proactive lifestyle choices and routine monitoring, individuals can take significant steps toward preserving kidney function. The field of nephrology has seen groundbreaking progress in recent years. Dr. Kowalski highlights the development of new medications that ease the burden on the kidneys, slow disease progression, and, in some cases, delay or even prevent the need for dialysis. “Dialysis is a life-saving treatment, but our goal is to help patients avoid or postpone it whenever possible,” he says. For many, kidney transplantation remains the best long-term option. Dr. Kowalski encourages patients to stay informed, maintain open communication with their healthcare providers, and take an active role in managing their kidney health. Observed every March, World Kidney Day serves as a vital reminder of the kidneys’ essential functions and the importance of early detection of conditions like hypertension and diabetes—two major risk factors for kidney disease. March is also National Kidney Month, reinforcing the need for education and proactive health measures worldwide. Dr. Kowalski’s message on this occasion is simple yet profound: “Love your kidneys as much as you love yourself.” By making mindful dietary choices, staying physically active, and embracing advancements in kidney care, individuals can protect their kidneys and improve their overall health. This World Kidney Day, take a moment to appreciate the silent but essential work your kidneys do—and commit to supporting them through healthier choices. Listen to the full Podcast on Spotify!A Conversation with Dr. Andrew Kowalski on World Kidney Day
Diet, Inflammation, and Kidney Health: A Vital Connection
Protein, Hydration, and Early Detection of CKD
Advancements in Nephrology: A New Era of Kidney Care
World Kidney Day: A Time for Awareness and Action
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