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Does drinking excess water lead to reduced kidney function?

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Posted on Mon, 18 May 2015
Question: Hi Doctor is there such a thing as drinking too much water? I have heard that this reduces kidney function and allows toxins to build up, along with symptoms such as protein in your urine (foamy/bubbly)
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Answered by Dr. Muhammad Sareer Khalil (15 minutes later)
Brief Answer:
No excess water doesnt lead to reduced kidney function

Detailed Answer:
Hello and Welcome

I appreciate your concern

If the kidney function is normal ( can be confirmed by creatinine levels ) then excess drinking water can only lead to a dilute urine. Drinking too much water does not reduce kidney function and does not allow toxins to build up. It does not lead to proteinuria i.e protein in urine.

Excess water drinking can be a symptom of a few disorders such as diabetes, psychogenic polydipsia.

Wishing you best of health

Thanks

Dr. M.S. Khalil
Above answer was peer-reviewed by : Dr. Raju A.T
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Answered by
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Dr. Muhammad Sareer Khalil

General & Family Physician

Practicing since :2012

Answered : 2914 Questions

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Does drinking excess water lead to reduced kidney function?

Brief Answer: No excess water doesnt lead to reduced kidney function Detailed Answer: Hello and Welcome I appreciate your concern If the kidney function is normal ( can be confirmed by creatinine levels ) then excess drinking water can only lead to a dilute urine. Drinking too much water does not reduce kidney function and does not allow toxins to build up. It does not lead to proteinuria i.e protein in urine. Excess water drinking can be a symptom of a few disorders such as diabetes, psychogenic polydipsia. Wishing you best of health Thanks Dr. M.S. Khalil