The Vitamin D Society is a Canadian non-profit group organized to:

• Increase awareness of the many health conditions strongly linked to vitamin D deficiency.
• Encourage all Canadians to be proactive in protecting their health and have their vitamin D blood levels tested annually.
• Fund valuable vitamin D research.

This Affects Everyone!
97 percent of Canadians are vitamin D deficient at some point in the year‚ according to University of Calgary research. Worldwide‚ an estimated 1 billion people don’t get enough of "the sunshine vitamin".

Vitamin D Prevents Cancer:
Hundreds of studies now link vitamin D deficiency with significantly higher rates of many forms of cancer‚ as well as heart disease‚ osteoporosis‚ multiple sclerosis and many other conditions and diseases.

How Much Do You Need?
Nobody really knows how much vitamin D humans really require. We know that outdoor workers are naturally in the range of 100 – 150 nmol/L. Each human body is unique and processes vitamin D from UV or from food or supplementation differently. The key is to do what ever it takes for you to get your 25(OH)D blood serum levels to between 100-150 nmol/L. Current official recommendations range from 600-800 IU per day (IOM 2010)‚ to 2,000 IU for pregnant and lactating women (Canadian Pediatric Society), to 2,000 IU for adults 50+ at risk of osteoporosis (Osteoporosis Canada). The Canadian Cancer Society now recommends 1‚000 IU per day for all Canadians. Many vitamin D researchers believe that isn’t enough.The tolerable upper intake level is now 4,000 IU (IOM 2010) and the no observable adverse effect level (NOAEL) is 10,000 IU per day (IOM 2010).

Get Your Vitamin D Levels Tested!
Have your physician administer a calcidiol test (also known as a 25-hydroxyvitamin D test). More important than your daily intake of vitamin D are your actual vitamin D blood levels. Optimal vitamin D blood levels are between 100 nmol/L to 150 nmol/L according to 40 of the top Vitamin D researchers at GrassrootsHealth.