1

votes

Has anyone used a vitamin D home test kit?

Answered on August 19, 2014
Created February 21, 2012 at 9:29 PM

What vitamin D test kit do you recommend, and how accurate are they?

Fb67dc30cead043d1d13ea503a3044dc

(3280)

on February 22, 2012
at 04:49 AM

I'm so jealous of your uber D levels, Dragonfly! :: envy, envy :: ;)

Fb67dc30cead043d1d13ea503a3044dc

(3280)

on February 22, 2012
at 03:49 AM

Here's their link. You download your snps from 23andme, then upload them using Promethease. I found it easier to find info on a few things than it was at 23, like the Vit D thing. http://www.snpedia.com/index.php/Promethease

Fb67dc30cead043d1d13ea503a3044dc

(3280)

on February 22, 2012
at 03:46 AM

Thanks Dragonfly! @James, here is the text from Promethease, which analyzes all your snps for you: "rs2282679, located in the group-specific component (vitamin D binding protein) GC gene on chromosome 4p12, has been linked by several studies to vitamin D serum concentrations. In both studies, the allele associated with lower vitamin D, and thus the potential for vitamin D insufficiency, is rs2282679(C). Carriers of two such alleles have lower vitamin D than carriers of one allele, who in turn on average have lower vitamin D levels than rs2282679(A;A) individuals.

Ce41c230e8c2a4295db31aec3ef4b2ab

(32564)

on February 22, 2012
at 12:47 AM

I supplement 8,000 IUs per day to keep my level above 80 ng/ml--NO asthma for me at that level! (I tested at 91 ng/ml.)

5e36f73c3f95eb4ea13a009f4936449f

(8280)

on February 22, 2012
at 12:33 AM

Which gene was it at 23andme? I don't remember seeing it (just glancing through though).

Fb67dc30cead043d1d13ea503a3044dc

(3280)

on February 22, 2012
at 12:15 AM

Hey Dragonfly, how much do you take a day? I found out my D is a little low, in spite of supplementing (booo). I have asthma as well and wonder if that's part of it. I'm not surprised, though, since I learned at 23andme.com that I have a genetic flaw in my ability to store the stuff. Glad spring is almost here -- sun time!

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3 Answers

2
Ce41c230e8c2a4295db31aec3ef4b2ab

(32564)

on February 21, 2012
at 10:48 PM

I've used the one by ZRT Lab from the Vitamin D Council site.

The testing is done by the lab, so the accuracy is in the testing, not in the kit. It's just a blood spot kit with a lancet, etc...

The lab accuracy has been reported as very good. I have no reason to doubt it. My results correlated with the amount of D3 I am supplementing.

I was happy with the kit & instructions. I got my results back from the lab two weeks after I mailed in my completed kit.

Fb67dc30cead043d1d13ea503a3044dc

(3280)

on February 22, 2012
at 04:49 AM

I'm so jealous of your uber D levels, Dragonfly! :: envy, envy :: ;)

Fb67dc30cead043d1d13ea503a3044dc

(3280)

on February 22, 2012
at 12:15 AM

Hey Dragonfly, how much do you take a day? I found out my D is a little low, in spite of supplementing (booo). I have asthma as well and wonder if that's part of it. I'm not surprised, though, since I learned at 23andme.com that I have a genetic flaw in my ability to store the stuff. Glad spring is almost here -- sun time!

5e36f73c3f95eb4ea13a009f4936449f

(8280)

on February 22, 2012
at 12:33 AM

Which gene was it at 23andme? I don't remember seeing it (just glancing through though).

Fb67dc30cead043d1d13ea503a3044dc

(3280)

on February 22, 2012
at 03:49 AM

Here's their link. You download your snps from 23andme, then upload them using Promethease. I found it easier to find info on a few things than it was at 23, like the Vit D thing. http://www.snpedia.com/index.php/Promethease

Ce41c230e8c2a4295db31aec3ef4b2ab

(32564)

on February 22, 2012
at 12:47 AM

I supplement 8,000 IUs per day to keep my level above 80 ng/ml--NO asthma for me at that level! (I tested at 91 ng/ml.)

Fb67dc30cead043d1d13ea503a3044dc

(3280)

on February 22, 2012
at 03:46 AM

Thanks Dragonfly! @James, here is the text from Promethease, which analyzes all your snps for you: "rs2282679, located in the group-specific component (vitamin D binding protein) GC gene on chromosome 4p12, has been linked by several studies to vitamin D serum concentrations. In both studies, the allele associated with lower vitamin D, and thus the potential for vitamin D insufficiency, is rs2282679(C). Carriers of two such alleles have lower vitamin D than carriers of one allele, who in turn on average have lower vitamin D levels than rs2282679(A;A) individuals.

1
Fb67dc30cead043d1d13ea503a3044dc

(3280)

on February 22, 2012
at 12:14 AM

I got mine done via GrassRootsHealth.net, who are running a long-term study to determine how widespread D deficiency is. They are super nice folks, too. The kit was a blood spot kit plus lancet (they even give you band-aids, how thoughtful!). It's $65 for the test. They ask you to fill out a questionnaire to help them gather data.

I can't answer to accuracy, as I've not tested via separate labs to compare.

Here's the info link:

https://www.grassrootshealth.net/proj-welcome/?pr=95284

0
F2f559fe327007fd064a0f5bd79d6278

on February 22, 2012
at 12:16 AM

I tried but failed. My blood coagulates too fast for me to bleed enough. I was trying to use the £20 service from Birmingham City Hospital:

http://www.vitamindtest.org.uk/vitamindbackground.html

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