What's a Vitamin D deficiency

How Vitamin D Reduces Incidence of Cancer:

How Vitamin D Reduces Incidence of Cancer:

Dr. Garland's DINOMIT Model: Vitamin D for Cancer Prevention (PDF)

Vitamin D and Cancer Prevention. Garland

Dose-Response of Vitamin D and a Mechanism for Cancer Prevention

The slides used in the above video can be downloaded from this link.
Dose-Response of Vitamin D and a Mechanism for Prevention of Cancer
by Cedric F. Garland, Dr.P.H., Edward D. Gorham, M.P.H., Ph.D., Sharif B. Mohr, M.P.H., and Frank C. Garland, Ph.D.

Can vitamin D help prevent certain cancers and other diseases such as type 1 diabetes, cardiovascular disease, and certain autoimmune and chronic diseases? To answer these questions and more, UCSD School of Medicine and GrassrootsHealth bring you this innovative series on vitamin D deficiency. Join nationally recognized experts as they discuss the latest research and its implications. In this program, Edward Gorham, PhD, discusses the dilemma of skin cancer and sunscreen use.

Grassrootshealth D Action provide 25(OH)D testing at cost price.

Bio Tech Pharmacal offer cheap Dry Powder filled capsules of Cholecalciferol and are the only source of 50,000iu capsules I know of.
Now Foods, Vitamin D-3, Highest Potency, 5,000 IU, 120 Softgels Iherb is the cheapest source of 5000iu oilbased gel caps. Use Code WAB666 for a $5 introductory discount and try to share your rewards code when you have an IHERB account as the more you share the more discounts you get yourself.

Vitamin D and Cardiovascular Disease

Vitamin D Diabetes prevention

Allow plenty of time to watch this video.
It comes from the Grassrootshealth.org and you may find it helpful, if you want to study the graphs in more detail to download the slides separately

Vitamin D Prevents Cancer: Is It True?