What Is eGFR, and Why Is It Important for Kidney Health?

Question

I recently had a blood test, and my doctor mentioned something about my eGFR (estimated Glomerular Filtration Rate). I wasn’t sure what it meant, so I started researching. From what I understand, eGFR measures how well the kidneys are filtering waste from the blood, but how exactly is this number calculated?

I read that a normal eGFR is usually above 90, but anything below 60 could indicate kidney disease. Does eGFR automatically decrease with age, or does it only drop when kidney function is impaired?

What are the early warning signs of kidney problems that someone should watch out for if their eGFR is low? Are symptoms like fatigue, swelling, high blood pressure, or frequent urination common?

I also came across information that eGFR can be improved naturally. Are there lifestyle changes, dietary habits, or Ayurvedic remedies that can help improve kidney function and possibly increase eGFR levels? I’ve read that Punarnava, Gokshura, and Triphala are good for kidney detoxification—do they really work?

If anyone has been diagnosed with low eGFR, what changes did you make to improve your kidney health? Were dietary modifications enough, or did you need medication as well?

Dr. Harsha Joy · Accepted Answer

eGFR (estimated Glomerular Filtration Rate) is a test used to assess kidney function by measuring how well your kidneys are filtering waste from the blood. It’s calculated based on factors like your age, sex, race, and serum creatinine levels, which are a byproduct of muscle metabolism. A normal eGFR is typically above 90, but anything below 60 for three months or more could indicate chronic kidney disease (CKD). While eGFR can naturally decline with age, it usually only drops significantly when there is impaired kidney function, often due to conditions like high blood pressure, diabetes, or kidney disease. Early warning signs of kidney problems include fatigue, swelling, high blood pressure, frequent urination, and changes in the color or amount of urine.

To support kidney health, lifestyle changes such as reducing salt intake, staying hydrated, managing blood pressure and blood sugar levels, and avoiding excessive use of over-the-counter painkillers can help improve kidney function. In Ayurveda, herbs like Punarnava, Gokshura, and Triphala are believed to aid kidney detoxification, improve renal health, and support filtration processes. While these herbs may support kidney health, it's important to combine them with a healthy diet and medical guidance. If you have low eGFR, dietary modifications such as reducing protein intake and increasing antioxidants can be beneficial, but more advanced stages may require medication or treatment prescribed by a doctor. Regular monitoring of kidney function is essential for managing any underlying conditions.

What Is eGFR, and Why Is It Important for Kidney Health? - #15270

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