Kidney Health

Are your eGFR kidney filtration blood tests accurate if you lift weights, take creatine or hold a large amount of muscle?

I'm writing this after a scare where two different doctors wanted to refer me to a nephrologist for suspected chronic kidney disease. This is what I learned.

If you're doing DIY blood work, Cystatin-C is probably the test you want. eGFR is called "e" GFR for a reason - it's an estimate based on a simple algorithm considering age, weight, and creatinine blood levels.

If you're sedentary, that's great. If you train with weights and have higher than normal muscle mass and / or take creatine supplements, then likely your eGFR will be underestimated, because the equation involving creatinine fails to consider those with high BMI (muscular BMI, not fat people).

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This page is under development. It is either being written or restored from my previous blogs/websites.

Medical Notice

I am not a doctor or qualified medical professional and the content on this site only represents my own experience.
No page on this site constitutes any form of medical advice nor do I claim to be a professional authority on any health or sports subject.

About Kishore Naib (Kit Naib)

Kishore founded the e-commerce company Watch Shop in 2007 and exited in 2014 after an acquisition by Watches of Switzerland at the age of 34. Watch Shop was a medium sized enterprise (£44 million sales) and was one of the UK's fasted growing companies, doubling turnover every year.

After leaving Watch Shop Kishore did a few coding projects but decided to follow his true and first passion: Lifting and bodybuilding.

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