Vitamin D Test Kit

The BrainMD Vitamin D Test Kit is a simple at-home blood spot test that measures your vitamin D level. It gives you a clear picture of your vitamin D status, so you can understand where you stand and make more informed choices about your vitamin D intake.

Vitamin D plays an important role in brain health and helps support brain cell function, healthy neurotransmitter activity, and mood.* Knowing your vitamin D level can help you better understand whether you're getting enough.

The BrainMD Vitamin D Test Kit measures 25-hydroxyvitamin D [25(OH)D], the primary circulating form of vitamin D used to assess vitamin D status.

Testing is the clearest way to understand your vitamin D status. Sun exposure, diet, and vitamin D supplementation can all influence your level, but testing gives you an actual measurement rather than relying on intake or sun exposure alone.

Yes. Taking a vitamin D supplement doesn't necessarily tell you what your vitamin D level is. Testing gives you a measurable baseline that you can use to make more informed decisions about your vitamin D intake.

Yes. Sun exposure is one factor that can influence vitamin D status, along with diet, supplementation, and individual factors. Testing gives you an actual measurement of your vitamin D level rather than estimating it based on sun exposure alone.

First, register your kit online using the barcode on your collection card. Then use the included lancet to collect three blood spots from your fingertip, let the sample dry, and mail it to the lab in the prepaid return envelope. Your sample is analyzed to determine your vitamin D level.

The Vitamin D Test Kit requires three blood spots, one in each circle on the sample collection card. The sample is collected at home with a simple finger prick, so there's no traditional blood draw or lab visit required.

No, fasting is not required for this test. Follow the instructions included with your kit, or contact BrainMD Customer Care if you have questions before collecting your sample.

Retesting can help you understand how changes to your vitamin D intake, diet, and lifestyle are affecting your level over time. Your healthcare provider can also help you determine an appropriate retesting schedule based on your results.

Your result gives you a baseline you can use to make more informed decisions about your vitamin D intake. Depending on your results, you may choose to adjust your diet, lifestyle, or vitamin D supplementation, including products like BrainMD Vitamin D3 + K2 or Vitamin D3 5000, and retest to track your progress. If you have questions about your results or what they mean for you, talk with your healthcare provider.

People with bleeding disorders or those taking blood thinners should consult their physician before using the Vitamin D Test Kit. If you have questions about whether testing is appropriate for you or how to interpret your results, talk with your healthcare provider.