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Normal eGFR for my age?

Posted by sleigh349 @sleigh349, Apr 12, 2023

23 year old female, no diabetes (A1c is 5.2%) and no hypertension; BMI is 22.4. I have a past history of binge eating (two years ago), but it is not an ongoing issue and I no longer binge eat or feel tempted to binge or restrict.

A recent blood test result said my eGFR is 99, my albumin is 4.9, my globulin is 2.2, my A/G ratio is 2.2, and creatinine is 0.85.

I know these are all in the normal range, but according to Mayo Clinic, CDC, and the National Kidney Foundation, I thought someone of my age should have a higher eFGR (more like 116). According to these sources, my eFGR is the average for someone in their 40's, whereas I'm in my early 20's. My PCP says everything looks fine, but I am still concerned about why I have a lower-than-average eFGR for my age.

I know that they are just averages, and that 99 is within the normal/healthy range of kidney function, but I'm concerned of decreased kidney function when I'm older (in my 40s, 50s, 60s, and beyond).

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diane | @dks | Apr 13, 2023

You're very smart to be concerned about your kidneys at a young age! Best to you ♡

1. Sip water continuously throughout the day to make sure you're getting staying well-hydrated.

2. Keep sugars, chocolate and salt low, as well as red meats.

3. Eat plenty of fresh fruits.

4. Keep moving (exercise).

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johnmacc | @johnmacc | Apr 14, 2023

One set of labs does not a trend make. If your next set of labs are similar you could seek advice from a nephrologist. Looking at lab trends are important. And yes, drink water t/o the day, exercise keep sodium low and limit red meat as it make our kidneys work harder than they should. And kudos for being aware and that kidney function declines over time and can be managed if staring early like you are doing. Johnmacc

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Mentor
Ginger, Volunteer Mentor | @gingerw | Apr 14, 2023

@sleigh349 Welcome to Mayo Clinic Connect! You have already seen a couple of great responses to your concern. I would like to add, that everyone is different. What is "normal" for one person is not necessarily normal for someone else. Why can there be differences? Other health issues, weight, activity level, medications, diet, lifestyle.

As @johnmacc mentioned, one set of labs does not a trend make! And yes, good for you for being proactive in watching your health. You'll definitely thank yourself not only now but in the future, But, that said, don't obsess over it all. Enjoy your life. Any further questions for me?
Ginger

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