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Our work is made possible by membership fees, donations from individuals, and from the support of our generous sponsors below. About 80% of our revenue comes from memberships and donations, while 20% comes from our sponsors.

Please look through our sponsors, learn more about them and what they do. We appreciate their support!


Bio-Tech Pharmacal is a leading supplement manufacturer in the United States.
Along with their support of the Vitamin D Council, Bio-Tech Pharmacal has worked with over 40
universities worldwide to supply vitamin D and other supplements for their clinical trials.
Focusing on manufacturing high quality and accurate supplements with minimal fillers,
they are true vitamin D specialists.


Sperti is an American company that manufactures specialty UV sunlamps. They make a vitamin D lamp that has been tested and approved by the FDA to make vitamin D, the only lamp to have such approval.

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Scotmann is a privately owned pharmaceutical company with a differentiated portfolio focused on branded medicines in biotech, cardiovascular, diabetes, gastroenterology, respiratory and inflammatory diseases, pain management, osteoporosis, psychiatry and nutritional supplementation. Their company sells high quality vitamin D that is available in Pakistan.

WLS Products is a company in Europe that carry Bio-Tech Pharmacal supplements. If you live in Europe and want Bio-Tech Pharmacal vitamin D supplements, WLS Products is the place to go.


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Latest Articles
What is the relationship between vitamin D and childhood UTIs?

A new study suggests vitamin D may protect against UTIs among children by upregulating their own naturally occurring antimicrobial peptides.

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