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Information on the latest vitamin D news and research.

Find out more information on deficiency, supplementation, sun exposure, and how vitamin D relates to your health.

Order the new Vitamin D Council in-home vitamin D test kit


Finding out if you're vitamin D deficient is easy and affordable with our home testing solution! Continue reading

Vitamin D Podcast 06: Dr. Michael Holick


Dr. Cannell talks with Michael Holick about gene expression, the benefits of sunlight, Ehlers-Danlos Syndrome, and much more. Continue reading

Researchers need your help: Can you enroll in their study?


GrassrootsHealth is enrolling people for a study to measure vitamin D status and overall health. Continue reading

Prostate cancer and vitamin D: What's the link?


One in 6 men is estimated to have prostate cancer. Might vitamin D help in the prevention and treatment? Continue reading