Maintain your Vitamin D level
between 100 – 150 nmol/L
Vitamin D Health Benefits
Natural Levels of Vitamin D
Key Resources


Why So Gloomy? In Sun-Deprived China, Only 5% Have Healthy Levels of Vitamin D
Apr 24, 2015

Earlier this week, I found out I have a Vitamin D deficiency. A resident of Beijing, I only recently tried to figure out what was going on after symptoms of fatigue and mild depression led me to the doctor, who ordered a series of blood tests. He told me I was among a number of expats who become Vitamin D deficient after moving here. We deduced that the lack of sunshine from the pollution cover and the fact that I stay inside more often because of air quality issues led to my deficiency.

Luckily, the fix is easy: my doctor prescribed a large dose of daily Vitamin D supplements. But it made me wonder how, after only a year and a half of living in China, Beijing’s poor air quality has already affected my health.

full story . . .
Vitamin D Deficient Follicular Lymphoma Patients Experience Higher Relapse Risk
Apr 23, 2015

Low vitamin D levels prior to treatment may be linked to risk of relapse or death for patients with follicular lymphoma (FL), according to a new study published online in the Journal of Clinical Oncology.

“Our data, replicated internationally, support other published observations linking vitamin D deficiency with inferior cancer outcomes,” said Jonathan W. Friedberg, MD, co-leader of the study, in a statement. Friedberg is director of the Wilmot Cancer Institute at the University of Rochester Medical Center.

full story . . .
Multiple Sclerosis: High-Dose Vitamin D Improved Immune Markers for Relapsing-Remitting MS
Apr 21, 2015

WASHINGTON—High-dose vitamin D significantly improved immunological markers associated with relapsing-remitting multiple sclerosis (MS), investigators reported here in a platform session on Thursday at the AAN Annual Meeting. The six-month randomized trial compared high-dose vitamin D with low-dose vitamin D.

 The trial involving 32 patients did not look for clinical effects, which would not likely have been evident given its relatively small size and short duration. But it is the first evidence from a randomized trial to confirm previously published observational studies, the study’s first author told the Neurology Today Conference Reporter before the session.

 “The immunological changes we saw should presumably translate into a beneficial clinical effect,” said Pavan Bhargava, MD, a fellow in neuroimmunology at Johns Hopkins School of Medicine in Baltimore, MD. “But to definitely prove that, we have to wait for results from the two major clinical trials now underway.”

full story . . .
Could Canada cause multiple sclerosis?
Apr 21, 2015

The cheeky rebranding of multiple sclerosis in Canada raises the fair question: why are rates so high here?

Could Canada cause multiple sclerosis? That’s one takeaway from a new campaign being rolled out by the Multiple Sclerosis Society of Canada that brands MS “Canada’s disease” based on data that the country is home to the world’s highest incidence of the incurable degenerative condition. “Welcome to MS nation,” one billboard reads. “World leader in hockey, maple syrup and multiple sclerosis,” the website claims. Some messaging appears designed to quash the country’s appeal as an immigration destination: “In Canada, you have a greater risk of developing MS than in any other country,” the campaign reports, noting risk jumps for those who immigrate. The whys of this dubious distinction remain unanswered: “Is it our climate? Our diet? A lack of vitamin D?” No answers are given. But, as with all advertising, hope is extended: “We’re getting close to understanding why.”

full story . . .
Research shows our skin color is the evolutionary gateway to vitamin D
Apr 21, 2015

All over the world, millions of people see skin color as a symbol of superiority or inferiority, whether they are conscious of it or not.

Others see humanity’s array of skin tones, from white to ocher to black, as a positive mark of our remarkable diversity.

But Nina Jablonski sees skin color, first and foremost, as an evolutionary gateway to vitamin D.

full story . . .
Low vitamin D linked to high disease activity in Australian patients with SLE
Apr 16, 2015

Low levels of vitamin D were associated with higher disease activity in patients with systemic lupus erythematosus in an Australian cohort, according to recently published research.

Researchers prospectively studied 119 patients with systemic lupus erythematosus (SLE) under treatment at the Monash Medical Centre Lupus Clinic in Melbourne. One hundred patients were female (77.5%), 56.3% were white, 37.8% were Asian, 1.7% were of another race and racial background was unknown in 4.2% of patients. Patients’ mean age was 42.2 years, and mean disease duration was 8.7 years. All patients were treated with hydroxychloroquine, 58.8% were treated with glucocorticoids, 33.6% were treated with immunosuppressants, and 14.2% were treated with prednisolone.

Patients included in the study had at least one serum vitamin D measurement concurrently with erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), anti-double-stranded DNA (dsDNA) antibodies, and measures of renal function and complement levels. Bone density of the femoral neck and lumbar spine using dual-energy X-ray absorptiometry within 12 months of vitamin D tests was also recorded.

full story . . .
Vitamin D for Public Health
Dec 09, 2014        8:00 am

Integrating Sunshine, Supplements and Measurement for Optimal Health

This seminar, presented by UC San Diego School of Medicine and GrassrootsHealth, has been developed as an educational opportunity to present and discuss the science of vitamin D and sunshine. The objective of the meeting is to leave with an implementation plan for your group – using vitamin D and sunshine to optimize health.

We’re looking forward to seeing you there!

Cedric F. Garland, Dr. P.H.                                          Carole Baggerly
University of California, San Diego                             Director, GrassrootsHealth

event details
18th Vitamin D Workshop April 21-24, 2015
Apr 21, 2015        8:00 am

On behalf of the Workshop Executive Committee, you are

cordially invited to attend the 18th Vitamin D Workshop in

Delft, the Netherlands, April 21-24, 2015. The Vitamin D

Workshop features overviews and original reports on basic,

epidemiological and clinical research, oral as well as poster


event details

Susan Rex Ryan
Defend Your Life

Defend Your Life has three main sections. The first addresses the fundamentals of vitamin D3 and its awesome benefits as well as minimal risk. The second highlights select diseases and conditions about which vitamin D3 may offer protection. The third includes the author's personal vitamin D3 story, including her theory about adequate vitamin D3 levels and how you can 'Defend Your Life'.

Reading this book will help you understand how adequate amounts of vitamin D3 are essential to enhancing your quality of life.

Ian Wishart
Vitamin D: Is This the Miracle Vitamin?

In this compelling new book,award-winning investigative journalist and bestselling author Ian Wishart brings together the most up to date science on vitamin D and how it could well save your life. Cancer? Up to a 77% reduction in risk of developing it if you take this vitamin. Heart disease? The same kind of reduction. Did you know that autism, mental illness and multiple sclerosis all appear to be caused by a lack of vitamin D during pregnancy?

The lives of every single person, including you, will be affected by the information in this book. With more than 300 scientific trials and studies cited, this book is a reference guide not just for the general reader but for medical professionals alike.

 more books...


Spring Sunshine Welcomed as Canadians Vitamin D Levels Plummet

Risk increased for a number of serious diseases

WOODSTOCK, Ont. (March 19, 2015) – A new Statistics Canada report has confirmed that 12 million Canadians have vitamin D blood levels that are below what Health Canada recommends and vitamin D levels continue to drop from previous years.

Results from the 2012 to 2013 Canadian Health Measures Survey (CHMS), released December 2014, report that 35% or 12 million Canadians have vitamin D blood levels below the Health Canada guideline of 50 nmol/L. This has increased by 3% from the previous Statistics Canada report (2009-2011) of 32%. The mean average vitamin D level for Canadians age 6-79 years has also dropped by 9.9% over the last 4 years from 68 nmol/L to 61 nmol/L. “This downward trend in vitamin D blood levels is putting more Canadians at a higher risk for many cancers including colon, breast and prostate, as well as for cardiovascular disease, diabetes, multiple sclerosis, osteoporosis and other serious diseases” stated Perry Holman, Executive Director of the Vitamin D Society.

full press release

Building consensus on optimal vitamin D levels in Canada

Key disease organizations support effort to curb vitamin D deficiency

TORONTO, Ont. (November 21, 2014) - A push to develop a Canadian Vitamin D Consesus that can be used to educate Canadians on the importance of optimal vitamin D levels for health is gaining support.

Vitamin D experts from around the world attended a workshop in Toronto earlier this month with the goal of reducing vitamin D deficiency in Canada.

A number of prominent Canadian disease organizations, including the Multiple Sclerosis Society of Canada, Osteoporosis Canada, the Canadan Breast Cancer Foundation and Prostate Cancer Canada attended the November 4 workshop on vitamin D.

"It's extemely encouraging to see momentum building behind efforts to improve education among Canadians on how to ensure they are getting enough vitamin D. Together, we can help people improve their health and reduce risk to several serious diseases," said workshop chairperson Dr. Reinhold Vieth, retired director of the Bone and Mineral Laboratory at Mount Sinai Hospital and a professor at the University of Toronto in the Department of Laboratory Medicine and Pathobiolgy.


full press release

Shining a light on need to boost vitamin D levels in Canada

Vitamin D Society workshop on Nov. 4 to build consensus on curbing vitamin D deficiency

TORONTO, Ont. (October 31, 2014) – As winter draws closer and our daylight hours grow shorter, Canadians are being urged to take steps to protect their health by maintaining sufficient levels of vitamin D.

To mark Vitamin D Awareness Month in November, The Vitamin D Society is spreading the word about the importance of proper vitamin D levels and the affect it has on our everyday health.

On Tuesday, November 4 in Toronto the non-profit organization is hosting the Vitamin D Consensus Workshop, featuring several international medical experts. Representatives from key disease organizations have been invited to attend to help develop a Canadian Vitamin D Consensus that can be used to educate Canadians on the importance of optimal vitamin D levels for health. The workshop comes shortly after World Vitamin D Day on November 2.

“Due to Canada’s northern latitude, Canadians cannot get sufficient levels of vitamin D through sunshine from November to May,” said workshop presenter Dr. Reinhold Vieth, retired director of the Bone and Mineral Laboratory at Mount Sinai Hospital and a professor at the University of Toronto in the Department of Laboratory Medicine and Pathobiology. “Low levels of vitamin D can create a higher risk of serious diseases, such as cancer, cardiovascular disease, diabetes, multiple sclerosis, osteoporosis and others.”

full press release
Dr. Reinhold Vieth

Clinical Biochemist at Mount Sinai Hospital and Professor - University of Toronto, Departments of Nutritional Sciences and Laboratory Medicine and Pathobiology.

Click to View Carole Baggerly

"Director, GrassrootsHealth, a Public Health Promotion Organization
leading D*action, the world's largest ongoing vitamin D intervention


Click to View Dr. John Cannell M.D.

Executive Director‚ The Vitamin D Council
San Luis Obispo, CA, USA

 more advisors...

Converter Tool

In Canada Vitamin D 25(OH)D levels are measured in nmol/L. In the U.S. it is measured as ng/ml. To convert:

Enter nmol/L: ng/ml
Enter ng/ml: nmol/L