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Kidney Stones & Low Vitamin D

Stone Fighter #14E681Sep 17, 2026👁️ 530❤️ 100

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Hey everyone,

So I recently passed a 7.4mm stone, and I also got my blood work done and found out I'm deficient in both D(13) and B12 (181). I'm trying to supplement both of them. B12 isn't an issue for me since whatever's extra just leaves the body through urine, but with vitamin D, gemini and a bunch of resources online keep telling me that D supplements can cause trouble for people who are already dealing with stones, and even people who don't have stones can develop them because D supplements drive calcium absorption and if there's too much of it, the kidney might not be able to handle it. With all that in mind I have no clue how to go about getting my D back on track, at worst gemini said to take 60K IU per 14 Days.

Appreciate the advice

Comments (6)

Stone Fighter6 #8265BBSep 17, 2026

Get them to run a PTH Intact test on you. That checks your parathyroid level. Your parathyroid is what controls the calcium in your body. If something's off with your parathyroid it burns through your vitamin d so it can leech calcium out of your bones. Then your kidneys start filtering out all that extra calcium now sitting in your blood, and that's how you end up with kidney stones. My doctor had me start on 2000 UI once per day and my vitamin D level went from 14 up to 20. Then after 3 mo...

Stone Fighter #14E681Sep 17, 2026

Got it

Stone Fighter #F62B8ESep 17, 2026

Have your Parathyroid looked at. It can suppress your Vitamin D.

Stone Fighter #55983ESep 17, 2026

That's rough, vitamin D and kidney stones is a tricky combo because your body needs D to absorb calcium, but calcium running unchecked in your urine is exactly what feeds stone formation. Your urologist or nephrologist ought to run a full metabolic panel to find out if you're actually hypercalcemic or just deficient -- those numbers completely change what the treatment path looks like. B12 is the safer one, but supplementing D without knowing where your calcium sits is a gamble you don't want...

Stone Fighter #267B42Sep 17, 2026

Bring up your parathyroid with your doctor. Mine was primary hyperparathyroidism, and that's what was behind my low vitamin d. It also drives calcium up high (in most cases), so you'll want that checked too. Plenty of doctors really misunderstand this disease, so if you want the testing done you may genuinely have to advocate for yourself. If you want to dig into it more, head over to parathyroid.com.

Stone Fighter #D338D6Sep 17, 2026

How is anybody supposed to answer you with so little to go on? What’s your F level? Age? Sex? Is it chronic? Any bone density problems? Are you getting enough sunlight? Do you take K2 along with your D? Every one of those matters.

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