Abnormally high vitamin D without supplementing.

[McPammy]

Hi

My recent vitamin D blood result is abnormally high. 167(50-150).

Anyone ever had this. I have never supplemented vitamin D ever and I’ve not been in the sun at all or eat fortified food to get this high in the winter

I’ve have my parathyroid checked, bone profile checked and HBA1C also checked since and they’re all normal.

My recent thyroid tests are all good.

TSH 0.90(0.35-5.50). T4 9.2(7.4-14.40). T3 4.9(3.7-6.0). Bloods done after leaving 18hrs gap since last medications Levothyroxine T4 and Liothyronine T3. Once meds taken T4 and T3 numbers will rise.

I’ve always had good vitamin D results even in the winter of about 90 (50-150) and 130 in summer months. I get it checked every 3 months routinely. I’ve not been in the sun at all and do not supplement.

Anyone had this please?

[humanbean]

As is mentioned often on the forum, vitamin D raises absorption of calcium from the diet. And to get that calcium into bones and teeth rather than lining your arteries we need co-factors vitamin K2 and magnesium. I think boron is required as well, but I'm not sure of that.

This prompts the following questions for me ...

1) Have you had your calcium levels measured? Doctors rarely test calcium in my experience, and even the private testing companies have dropped it from their comprehensive test bundles in the last couple of years. I used to get my calcium level measured quite often because it is always on the cusp of going over-range but never quite does it. But I've found it to be more difficult and much more expensive to get this tested in recent years.

2) Could you be taking too much magnesium or vitamin K2? What kind of magnesium supplements do you take (if any)?

[McPammy in reply to humanbean]

HiI don’t take any supplements at all only B12 injections 3 monthly and I’m on Ferris Fumerate 210mcg for low ferritin. I’m a vegetarian.

My GP said she’s never seen over range vit D without supplementing before. I’ve recently had my parathyroid checked for calcium and a bone blood test also. They came back normal.

It’s a bit of a mystery really. My D has always good but never over range. Odd during winter and no supplements at all. I’ve read it could be hypercalcemia but my parathyroid is normal. I’ve also read it could be cancer so I’ll have to speak to my GP again to see where I go from here. I think I need another vit D test to make sure there wasn’t any error and that it hasn’t gone higher too.

Thank you for replying and trying to help.

[humanbean in reply to McPammy]

If you get another vitamin D test it would be worth sending the blood sample to another lab with a different testing protocol just to be sure it isn't a lab error. Given that you've always had quite high levels of vitamin D it seems worth trying, even if all it does is dismiss the idea of lab error.

I’ve read it could be hypercalcemia but my parathyroid is normal.

Testing for parathyroid issues is obviously sensible. But does it include testing your calcium? If not it really needs to be done. (I don't know anything about parathyroid testing.)

I've read that high calcium can be associated with cancer but I'm not sure about vitamin D. If this is a real concern for you then you might like this link :

sciencenorway.no/cancer-for...

Sorry I can't come up with anything useful.

[Mrs-Jones]

Hi there did you ever get to the bottom of your vitamin D issues? I have just the sane thing and with low calcium, high gamma gt, iga and ferritin. I also inject b12 and wonder if this is the culprit? My thyroid readings are good. I feel very unwell though

[McPammy in reply to Mrs-Jones]

Hi,

Yes, I did find out. The lab had made an error! I had another test done a week later and it was 117 which is inside the range scale. So, I never did have over range vit D. At least I found the reason. Maybe retest yours too. I guess these places can make errors from time to time.

[Mrs-Jones]

Oh that's good news 😊 sadly mine has been tested regularly and always over, so I'm back to the endo tomorrow to see what he says. Thank you for replying, stay well xx