Home 25-D test kits

An economical method to obtain periodic testing of your 25-DThe vitamin D metabolite widely (and erroneously) considered best indicator of vitamin D "deficiency." Inactivates the Vitamin D Nuclear Receptor. Produced by hydroxylation of vitamin D3 in the liver. levels is to use a home test kit. Results seem to be fairly reliable when shipping times to the lab are normal.

Due to it's popularity, 25-D tests are now offered by a number of sites online. You will likely want to check around for the best price prior to ordering a kit. The following table offers a sample of sites and prices available.1)

Results when samples shipped from overseas

Many local draws are shipped some distance to the analyzing lab. Some patients have shipped samples overseas. One patient reported that a result from a sample shipped overseas was a lower value than the result from the same draw given to a local lab. This may be related to the length of time in shipment or environmental conditions during shipment.

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1)
These results were from a survey of sites in May 2014