Vitamin D, 25-OH, Total

The 25-OH Vitamin D test measures the amount of vitamin D in your body. It can be used to check if you have enough vitamin D, which is important for healthy bones and muscles. It can also be used to monitor the effectiveness of any vitamin D, calcium, magnesium, or phosphorus supplements you may be taking. This test is especially important for people with diseases that interfere with fat absorption, such as cystic fibrosis or Crohn’s disease.

Testing is not available in NY, NJ, RI, or outside of the continental United States.

How it Works

Order your kit

Your kit is shipped on the following business day

Receive your test kit and follow our personalized instructions email

Complete your test at home, and mail back to the lab using a pre-paid shipping label

You’ll be emailed a secure link to access your results

About This Test

SAMPLE REPORT

COLLECTION INSTRUCTIONS

SHIPPING TIME

1 - 6 days, UPS

TURNAROUND TIME

9 days

CATEGORY

Basic Laboratory Markers, Nutrition

TEST PREPARATION STARTS

Up to 12 Hours Before Collection

NUMBER OF COLLECTION DAYS

1 Day

CERTIFICATIONS

CAP Certified, CLIA Certified

BIOMARKERS

25-Hydroxy Vitamin D