The Vitamin D Council is a group of concerned citizens that believe many humans are needlessly suffering and dying form Vitamin D Deficiency. Their goal is to educate the public and professionals about this deficiency and its numerous associated diseases. Their free newsletter has a circulation of over 24000, and they are in the process of applying for grants from charitable foundations and have asked their Congressman, Bill Thomas, for help in obtaining funding. At the website you will find some information about vitamin D, for example that is a steroid hormone precursor that has recently been found to play a role in a wide variety of diseases. Currently research indicate that vitamin D deficiency plays a role in causing seventeen varieties of cancer as well as heart disease, stroke, hypertension, autoimmune diseases, diabetes, depression, chronic pain, osteoarthritis, osteoporosis, muscle weakness, muscle wasting, birth defects, and periodontal diseases. To learn more about these diseases you can search them by the category at the homepage.