Vitamin D (25OH D2 & D3)-Doctor's Data Kit

Note: This is a test kit that will be mailed to you. It requires a blood draw. It is your responsibility to arrange the blood draw for your kit and payment of your specimen collection.



Fasting Required: No

Specimen: Blood

Results: 5-7 Business Days
Note: Result turnaround times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.

Special Instructions: Fasting is not required for these tests. It is generally recommended to refrain from taking non-essential medications and dietary supplements for 72 hours prior to the specimen collection unless otherwise instructed by your physician. Never discontinue prescription medications without first consulting your physician.

Description: 25-Hydroxyvitamin D, known for its role in bone health and calcium absorption, also appears to affect immune function, neurodegenerative and cardiovascular issues, and other conditions. Vitamin D occurs in two forms—D3 is obtained from animal diet sources and through sun exposure, and D2 is obtained through vegetable diet sources. Both forms of the vitamin are used to fortify various foods and in supplements. Doctor's Data uses the gold standard LC/MS QQQ method to measure Vitamin D2, D3 and total Vitamin D.

Analytes Tested:
25-Hydroxyvitamin D Total
25-Hydroxyvitamin D2
25-Hydroxyvitamin D3