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Use this tool to calculate the estimated additional Vitamin D intake needed to reach your target vitamin D serum level (40-60 ng/ml recommended by our scientist panel).

Don’t know your current serum level?

Order your Home Vitamin D Test Today

Need more help on what to do with your D calculator results? Read here

The average vitamin D level was 20 ng/ml (50 nmol/L), with 45% below 20 ng/ml and 20% below 10 ng/ml (25 nmol/L).

Click to Enlarge & Print

Click to Enlarge & Print

Help Prevent Vitamin D Deficiency!

Projects like this make it very clear that vitamin D deficiency is still a MAJOR PROBLEM! With vitamin D being the “Sunshine Vitamin,” and winter coming to an end, vitamin D deficiency is likely at its worst. Be sure to measure vitamin D levels now and correct existing deficiency immediately. A panel of 48 international vitamin D researchers and scientists recommend a vitamin D level between 40-60 ng/ml (100-150 nmol/L), yet only 2% of this group had a level within that range. Enrolling into the D*action project gives everyone a chance to measure their vitamin D levels from home while contributing to life-changing research.

Enroll & Order Today!

Vitamin D is just one of the MANY health benefits provided by sunshine exposure. Learn more here.

Help Fund the North Dakota Project

Help us expand this project to include testing for more participants, follow-up testing, and vitamin D education for this population and their public health officials.

Donate Here

*Bunde et al. (2012, June). 75% of Dakotans are Vitamin D deficient. NIH. https://pubmed.ncbi.nlm.nih.gov/22856011

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