Summer Kidney Health Tips for At-Risk Individuals

From the National Kidney Foundation

With extreme summer temperatures sweeping across the country, The National Kidney Foundation (NKF) is urging individuals living with chronic kidney disease (CKD) and those undergoing dialysis to take extra precautions to protect their health during heatwaves. 

“Exposure to very high temperatures during the summer can be more than uncomfortable—it can be dangerous, especially for those with compromised kidney function,” said Dr. Kirk Campbell, President at the National Kidney Foundation. “We want to empower people with knowledge and tools to protect their health as the heat index climbs.”  

Why Summer Heat Poses a Risk  

Hot weather increases the risk of dehydration, which can strain the kidneys and exacerbate existing conditions. Certain medications, including blood pressure drugs and diuretics, can increase sensitivity to heat and fluid loss.  

Additionally, people with diabetes, high blood pressure, or a family history of kidney disease should take extra precautions during extreme heat events. 

Summer Kidney Health Tips:  

• Drink plenty of water: Stay consistently hydrated unless otherwise directed by a healthcare provider.  

• Avoid sugary or salty drinks: These can worsen dehydration and place added strain on the kidneys.  

• Limit outdoor activities during peak heat: Try to stay indoors or in the shade during the hottest part of the day (10 a.m. – 4 p.m.).  

• Wear light, breathable clothing and use sun protection.  

• Know the signs of heat stress: Dizziness, rapid heartbeat, confusion, or dark urine should be taken seriously and treated immediately.  

“In general, people with CKD or on dialysis are at higher risk for dehydration, volume depletion and heat-related illness,” said Dr. Campbell. “Summer heat can have a serious impact on kidney function and overall health if not managed properly.  It’s important for everyone to be vigilant but it’s especially important for those living with CKD.”