My GFR is 58 and has been for several years. I drink ~1 gallon of liquids a day-usually a week crystal light – 1 packet in 32oz of water. Do I need to be more more careful of the amount of liquids I drink to protect my kidney function? My doctor tells me to drink when I’m thirsty, but I feel thirsty a lot when I don’t drink so much. I’m not diabetic.

Your kidneys can handle any fluid that you drink.  If you drink too excessively, this would show up in a low blood sodium test.  If you perceive thirst, I suggest you drink.  I agree with your physician.  If your serum sodium test is normal, I don’t think you have anything to worry about.


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