March is National Kidney Month: What People with Diabetes Need to Know
As March approaches, it's important to recognize National Kidney Month and the critical connection between diabetes and kidney health. For people with diabetes, the kidneys deserve special attention as they're particularly vulnerable to damage from chronically elevated blood glucose.
The Diabetes-Kidney Connection
Diabetes is the leading cause of kidney disease in the United States. Approximately 1 in 3 adults with diabetes has chronic kidney disease (CKD), though many don't know it because early-stage kidney disease often has no symptoms.
High blood glucose levels can damage the blood vessels in the kidneys, impairing their ability to filter waste from the blood. Over time, this can lead to diabetic kidney disease (also called diabetic nephropathy).
Warning Signs of Kidney Problems
Early kidney disease is often silent, but as it progresses, you might notice:
- Swelling in the feet, ankles, hands, or face
- Fatigue
- Difficulty concentrating
- Poor appetite
- Foamy or bubbly urine
- Blood in the urine
- Increased need to urinate, especially at night
Protecting Your Kidneys When You Have Diabetes
The good news is that kidney disease can often be prevented or its progression slowed with proper care:
1. Blood Glucose Management
Keeping your blood glucose levels within your target range is one of the most important ways to protect your kidneys. Work with your healthcare team to determine appropriate targets and strategies.
2. Blood Pressure Control
High blood pressure can accelerate kidney damage. For most people with diabetes, the blood pressure goal is below 130/80 mmHg. Medications called ACE inhibitors or ARBs are often prescribed as they provide additional kidney protection.
3. Regular Screening
Two key tests for kidney function should be performed at least annually:
- Urine albumin-to-creatinine ratio (UACR) - detects small amounts of protein in the urine
- Estimated glomerular filtration rate (eGFR) - measures how well your kidneys are filtering
4. Medication Management
Some medications can affect kidney function. Make sure all your healthcare providers know about all the medications you take. Certain diabetes medications may need dose adjustments if kidney function declines.
5. Dietary Considerations
A kidney-friendly diet may include:
- Moderating protein intake (not too high, not too low)
- Limiting sodium to help control blood pressure
- Choosing heart-healthy foods that also benefit the kidneys
- Staying well-hydrated (unless your doctor advises fluid restriction)
6. Lifestyle Factors
Additional protective measures include:
- Not smoking
- Limiting alcohol
- Regular physical activity
- Maintaining a healthy weight
New Developments in Kidney Protection
Recent years have seen exciting advances in kidney protection for people with diabetes. Two classes of diabetes medications - SGLT-2 inhibitors and GLP-1 receptor agonists - have shown significant kidney-protective effects beyond their glucose-lowering properties.
If you have diabetes and early signs of kidney issues, ask your healthcare provider if these medications might be appropriate for you.
Conclusion
This National Kidney Month, take time to assess your kidney health and protection strategy. If you haven't had kidney function tests in the past year, schedule them with your healthcare provider. Small steps taken now can preserve kidney function for years to come.
Remember: kidney disease is often preventable and always worth preventing. With proper attention and care, you can protect these vital organs while managing your diabetes effectively.