Some vitamin C products claim to use fully reduced vitamin C. Is this important?
Learn more about fully reduced vitamin C, including tips on how best to store vitamin C supplements. ConsumerLab's answer explains.
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Our Members Asked:
Can vitamin C from a supplement cause blood in the urine and painful urination?
Reviewed and edited by Tod Cooperman, M.D.
Answer:
The pain and blood in her urine could have been caused by vitamin C itself rather than by a contaminant. See the Concerns and Cautions section of the Vitamin C Supplements Review for a full explanation >>.Join today to unlock all member benefits including full access to all CL Answers and over 1,300 reviews.
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Howard15331
July 27, 2017I was asked by a US Navy hospital corpsman decades ago if I took a Vitamin C supplement after examining a urine sample under a microscope. When I told him I did, he warned me to be careful how much supplementary Vitamin C I took. He said it could crystallize in the urine, leading to urinary tract injury and even result in kidney stones. I quit taking it immediately.
ConsumerLab.com
August 24, 2017Thank you for sharing this, Howard. You can find information about this in the "Concerns and Cautions" section of the Vitamin C Review: https://www.consumerlab.com/reviews/vitamin-c-supplement-review/vitaminc/#cautions