The People's Perspective on Medicine

Vitamin D Supplements Don’t Increase Risk of Kidney Stones

Vitamin D supplementation has received a lot of attention over the last few years because so many people appear to be low or deficient in this nutrient. Some experts worry, though, that vitamin D supplements might increase a person’s risk of developing kidney stones.

Now people taking vitamin D can feel reassured. A new study of over 2,000 subjects found no association between vitamin D blood levels and kidney stone occurrence.

[American Journal of Public Health, online March. 2013]

You can learn more about vitamin D, its sources and the merits of vitamin D2 vs vitamin D3 as supplements in our Guide to Vitamin D Deficiency.

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About the Author
Terry Graedon, PhD, is a medical anthropologist and co-host of The People’s Pharmacy radio show, co-author of The People’s Pharmacy syndicated newspaper columns and numerous books, and co-founder of The People’s Pharmacy website. Terry taught in the Duke University School of Nursing and was an adjunct assistant professor in the Department of Anthropology. She is a Fellow of the Society of Applied Anthropology. Terry is one of the country's leading authorities on the science behind folk remedies. .
Vitamin D Deficiency

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Vitamin D Deficiency
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Comment above says D3 is best, D2 less effective. However– are they different enough that both should be taken for best result?
Thank you

A few years ago, encouraged by all the Vitamin D hype, I tried adding 400 to the small amount in my multivitamin.
I’d been taking it maybe a month or two when I got I kidney stone. I hadn’t had one in 60+ years.
I stopped the Vitamin D and haven’t had a kidney stone since. I realize that this is anecdotal, but I wonder about one study against a lot of previous concern about D and stones.

For years, conventional medical information was that vitamin D was toxic, The utl was set at 400iu which is a joke. Vitamin D is safe folks. Vitamin D2, which is the one most commonly used in supplements is not as good, but is the one used in most “studies”, designed to fail. D3 is the most beneficial. Doses of 4-5,000 iu daily are the most beneficial. Do some research!.

Thanks for this information. I recently stopped taking the recommended, over the counter dosage of Vitamin A & D (Combined), based on recent information regarding Vitamin D and the potential for Kidney Stones. Does that still mean that the combination of Vitamin A & D (combined) still remains untested and should be discontinued?
Sue S.

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