Rufus Greenbaum
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Sunlight & Vitamin D
“There is substantial scientific evidence supporting the role of vitamin D in the prevention of cancer.”
This bold statement is made by 16 eminent doctors and scientists in a Call-To-Action at:
Thousands of lives are also lost each year due to diabetes, heart disease, multiple sclerosis, osteoporosis and other auto-immune diseases in which vitamin D deficiency plays a major role.
If you do not expose yourself to enough sunlight, because you live too far from the equator, or because you have dark skin, or because you use too much sun-screen, or because you cover most of your body, you are unlikely to receive enough vitamin D from natural sources.
You would probably benefit from taking 2,000 IU per day of Vitamin D3
( Holick & Vieth report no adverse reaction to 10,000 IU per day, subject to blood tests )
If you are concerned about your levels of Vitamin D you should ask your doctor for a blood test that checks the level of serum 25 hydroxy-vitamin D.
Target levels are 40-60 ng/mL ( 100-150 nmol/L outside USA )
The first signs of many of these illnesses and even osteoporosis can be seen in teenagers, so take action when you are young !
For more information see:
See the Documentation & D*facts sections for many articles, reports & videos.
Download the presentation: Is it true ?
Check the chart for Disease Incidence Prevention.
This shows target levels of 25 hydroxy-vitamin D required to prevent many illnesses
Download: Symposium in Print - Vitamin D for Cancer Prevention: Global Perspective
Shows how supplementation with Vitamin D & Calcium could reduce cancer by 77%

Watch the videos of presentations given at a scientific conference about Vitamin D held at University of California at San Diego

Search by the name of the presenter or “Vitamin D”
There is an excellent 30-minute introduction by Carole Baggerly

Dr Michael Holick gives a most entertaining and informative overview

Dr Robert Heaney:
links all the evidence across many short-term and long-term illnesses
and explains how Vitamin D interacts with & enables uptake of calcium
Dr Frank Garland talks about the connections between Type-1 Diabetes and Vitamin D

Professor Cedric Garland shows the detailed evidence linking Cancer to lack of Vitamin D
Dr Edward Gorham talks about sunlight and sunscreens

Dr David Sane talks about Heart Disease and Vitamin D

Dr Donald L Trump talks about Cancer treatment at Roswell Park, NY

Dr Carol Wagner talks about pregnancy and breast-feeding

Anyone suffering from Cancer should watch the presentations from
Professor Cedric Garland & Dr Donald L Trump
- and then ask their Oncologist about Vitamin D
An excellent source of information about Vitamin D
Lists many diseases where lack of sunlight is implicated
Good source of scientific documents showing the evidence

Reports, factsheets, books and videos from Dr Michael Holick, Professor of medicine, dermatology, physiology, and biophysics at Boston University, USA.
There is an excellent 60 minute presentation on Prospects for Vitamin D Nutrition by Professor Reinhold Vieth about Vitamin D and how it relates to Cancer, Osteoporosis and Multiple Sclerosis.
Excellent overview information, with links to many other sources & websites worldwide
Read the book by Dr James Dowd: The Vitamin D Cure

Excellent source of UK-based information, including 3 online books by Dr Oliver Gillie 
Read the book by Dr David Grimes:  Vitamin D & Cholesterol, The importance of the sun