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


Sunshine Vitamin
May 17, 2017

With more than two-thirds Indians suffering from Vitamin D deficiency, it is time that we took measures to prevent it, doctors tell SHALINI SAKSENA

Did you know that prevalence of Vitamin D deficiency in India touches almost 70 per cent? The reason doctors tell you is that the widely consumed food items like dairy products are rarely fortified with Vitamin D.

“Vitamin D is a fat soluble vitamin stored in the liver and fatty tissues. Increased body fat has the ability to absorb Vitamin D and keep it from being used within our body. It is different than other vitamins as our body makes most of our Vitamin D on its own, instead of solely relying on food sources. It impacts not only our skeletal structure, but also our blood pressure, immunity, mood, brain function, and ability to protect ourselves from cancer.

full story . . .
Vitamin D Deficiency Affects Cognition in Multiple Sclerosis
May 08, 2017

Results of a study published in a recent issue of Scientific Reports1 showed significant improvements in cognitive performance among patients with multiple sclerosis (MS) after a short course of vitamin D replacement.

Investigators from the MS Center of the American University of Beirut Medical Center in Lebanon recruited 88 participants (40 men/48 women; average age, 36 ± 12.2 years) with clinically stable relapsing-remitting MS or clinically isolated syndrome, according to MacDonald 2010 criteria, during a 2-year period from 2012 to 2014. The participants were broken up into 2 groups based on vitamin D status: sufficient (25 hydroxyvitamin (OH) D >35 ng/mL) or deficient (<25 ng/mL). Those in the deficient group were given high-dose vitamin D3 supplementation in the form of 10,000 international units daily for 3 months, whereas the sufficient group continued their usual care, which may have included supplementation.

full story . . .
Nearly 1 billion have a vitamin D deficiency says new research
May 04, 2017

Nearly 1 billion people worldwide may have a deficiency or insufficient levels of vitamin D -- that's according to a new clinical review published in the May issue of The Journal of the American Osteopathic Association.

Considered a hormone rather than a vitamin, vitamin D is produced when skin is exposed to sunlight and plays an important role in many of the body's functions, including cell growth modulation, neuromuscular and immune function and inflammation reduction.

Many previous studies have linked a deficiency or insufficient levels of the vitamin to a wide range of conditions including multiple sclerosis, cardiovascular disease, asthma, and autism, with t he Endocrine Society currently defining insufficiency as between 21 and 30 ng/ml and deficiency below 20ng/ml.

Dr. Kim Pfotenhauer, one of the study's researchers, also pointed out that chronic diseases such as Type 2 diabetes and those related to malabsorption (including kidney disease, Crohn's and celiac disease) greatly inhibit the body's ability to metabolize vitamin D from food sources.

full story . . .
Vitamin D could be much more important to your health than you think
May 04, 2017

Vitamin D helps our bodies regulate levels of calcium and phosphate – nutrients that keep bones, teeth, and muscles healthy. Often, sunlight on our skin can be enough to enable us to produce all the vitamin D we need. But when sunshine is lacking, vitamin D must be ingested, and it can be difficult to meet the recommended levels from food alone. This matters because the health benefits of adequate vitamin D intake may be even greater than previously thought.

Vitamin D deficiencies are widespread, with around one billion people, from all age groups and ethnicities, suffering from them, even in countries with year-round sunshine. Indeed, they are particularly common in the Middle East, owing partly to the prevalence of skin-covering clothes and a cultural habit of staying out of the sun. That same habit, together with darker skin, contributes to lower levels of vitamin D among Africans.

Even in industrialized countries, doctors are seeing the resurgence of rickets, a bone-weakening disease that had been largely eradicated through vitamin-fortified milk and other products. And rickets is far from the only disease to which vitamin D deficiency may contribute. Research conducted over the last decade suggests that vitamin D plays a much broader disease-fighting role than once thought.


full story . . .
Too MUCH sunscreen is making us vitamin D deficient by blocking the good side of sunshine, controversial study claims
May 01, 2017

  • - Rates of vitamin D deficiency rocketed from 45% to 75% in 25 years in the US
  • - A new study claims our sunscreen could be too thick, blocking the sun's rays
  • - It is controversial given the rising rates of melanoma (skin cancer) worldwide 

Our dedication to suntan lotion has driven up rates of people needing vitamin D supplements, a controversial new study claims.

Figures suggest three-quarters of the US population are deficient in the 'sunshine vitamin', including 95 percent of African Americans. 

That is a dramatic climb from the early 90s, when fewer than half the country needed vitamin D supplements.

Many studies have warned it likely boils down to people spending more time inside.

But a new paper published on Monday tabled a different theory: we are wearing so much highly-protective sunscreen that we are blocking out the sun's benefits. 

It is a staggering claim as the nation battles rising rates of melanoma, a deadly form of skin cancer.   

full story . . .
A combination of exercise and vitamin D gives an even bigger boost to heart health
May 01, 2017

New U.S. research suggests that a combination of exercise and good levels of vitamin D could be an effective way of reducing the risk of cardiovascular disease such as heart attacks and strokes.

Carried out by researchers from Johns Hopkins University, the large-scale study looked at the survey responses and health records of 10,342 American adults with an average age of 54 for nearly a 20-year period.

Although exercise and sufficient levels of vitamin D have already been shown to reduce the risk of heart disease, the team wanted to look at what effect a combination of the two might have on heart health.

full story . . .
Joint International Symposia
Jun 21, 2017        

Vitamin D in Prevention and Therapy (June 21-22, 2017)


Biologic Effects of Light (June 22-23, 2017)

 Schlossberg Hotel Homburg, Germany

event details
Sep 22, 2017        8:00am

Medius Corporation is delighted to welcome you to the




September 22-23, 2017 | Warsaw

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Why Sunshine is good for you and the best source for Vitamin D!
May 12, 2017

We interviewed Dr. Michael Holick on why sunshine is good for you and the best source for vitamin D. Here is what he said:

In your opinion what is the root cause of vitamin D deficiency?

The 2 major reasons for the global D deficiency epidemic are the lack of understanding that very few foods naturally contain vitamin D and that sunlight has been and continues to be a major source for vitamin D worldwide.  The recommendation by many health organizations that neither children or adults should be exposed to direct sunlight has been a major factor in causing this pandemic.

Do you think the risks of moderate, regular sun exposure, such as skin cancer, has been over emphasized to the public?

There is no question that the abstinence message from national and international health organizations regarding sun exposure has been a major contributor to the vitamin D deficiency pandemic.  A recent study has suggested that moderate regular sun exposure does improve a person's vitamin D status and that mechanisms are at play in the skin to reduce the damaging effects from moderate regular sun exposure.


full post . . .
Does the Sunshine Vitamin Really Work?
Apr 13, 2017

By Perry Holman, Executive Director, Vitamin D Society

Based on recent media reports you may be questioning or doubting if vitamin D really works. Does it really prevent cancer?

You may have seen these headlines:

High Doses of Vitamin D Fail to Cut Cancer Risk

Vitamin D pills may not protect against cancer after all

These were based on a new study published in JAMA by Lappe et al. It was a randomized controlled trial of 2,303 women which studied the effects of 2,000 IU/d of vitamin D3 and 1500 mg/d of calcium supplement vs placebo on cancer outcomes.

But it did reduce cancer. A new diagnosis of cancer was confirmed in 109 participants, 45 (3.89%) in the Vitamin D and calcium group and 64 (5.58%) in the placebo group. Tell me which group you would want to be in? I think that this is a great result and proves that vitamin D could help prevent cancer.

full post . . .
Editorial - An Epidemiologists Perspective
Mar 09, 2017

by Cedric F. Garland, Dr PH FACE, UC San Diego School of Medicine

When I was 10, I had a friend who was a terrific playmate and fellow canyon explorer. We'll call him Tom. He had a suspicious streak in him. He told me he thought that doctors knew how to prevent cancer and other diseases, but were not disclosing this to the public. I did not believe his ideas on this topic. I discounted Tom as a young fanatic, a conspiracy theorist. 
For about 20 years we have known that sunlight deficiency is the main cause of a terrible and progressive, ultimately disabling disease. People who grow up in Seattle have 10 times the incidence of the disease as people who grow up in San Diego. This applies across the globe - the higher the latitude, the higher the MS incidence rate. It is a law of nature and disease and has been shown through many epidemiological studies (see sidebar).
full post . . .

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...


Summer Smart Sunshine Tips to Boost Vitamin D Levels

For Immediate Distribution

TORONTO, Ont (April 4, 2017) – The daylight hours are getting longer, the sun is getting stronger and summer is just around the corner. Make this the year that you optimize your vitamin D levels through effective sun exposure. Enjoy the health benefits and disease prevention from optimal vitamin D levels and learn to control your risks from sun exposure.

Vitamin D is made naturally in your body when UVB rays from the sun convert cholesterol in your skin to pre-vitamin D3. We make about 90% of our vitamin D from UVB sun exposure. UVB rays are short and only reach the earth when the sun is directly above us. We can’t make vitamin D in the winter in Canada because the sun is at too low of an angle and the UVB rays are absorbed in the atmosphere.

You make vitamin D in Canada between the months of May and October. The best time for exposure is around midday, between 10am and 2pm, when the UV index is above 3 and your shadow is shorter than your height. The further you get from noon, the lower the amount of vitamin D you’ll make. The sun’s visible light may penetrate through glass, but UVB light will not therefore you will not make vitamin D.

full press release

Study finds Vitamin D effective for reducing flu and colds

For Immediate Distribution

TORONTO, Ont (March 1, 2017) – People who boost their vitamin D levels with supplements reduce their risk of respiratory tract infections, such as the flu, by up to 12%, according to a new systematic review and meta-analysis study of 25 randomised controlled trial (RCT) studies published recently in the British Medical Journal (BMJ).

The study reported that this equates to one person being spared a respiratory tract infection (RTI) for every 33 taking vitamin D supplements. The benefit is greater in those receiving daily or weekly vitamin D versus bolus or monthly dosing, with the number needed to treat dropping to 20. The impact in Canada, based on a population of 35 million people, shows vitamin D could spare 1.75 million people having one RTI per year.

full press release

New Canadian study provides strong evidence that low vitamin D levels cause Alzheimer’s Disease

For Immediate Distribution

TORONTO, Ont (January 18, 2017) – A new scientific study published in Neurology from researchers at McGill University has provided evidence to support vitamin D as a causal risk factor for Alzheimer’s disease (AD). The McGill study found that lower vitamin D levels increased the risk of Alzheimer’s disease by 25% using a Mendelian randomization (MR) methodology which minimizes bias due to confounding or reverse causation.

Alzheimer’s disease is expected to double throughout the world in the next 20 years. The Alzheimer Society of Canada estimates that approximately 747,000 Canadians are living with some form of dementia.

There is no treatment that can effectively stop the progression of Alzheimer’s disease despite considerable effort. Therefore, disease prevention through modifiable risk factors where possible is critical. Ensuring vitamin D sufficiency through increased non-burning sun exposure in summer or vitamin D supplementation may be a cost-effective approach to help reduce Alzheimer’s disease risk.

full press release
Dr. Reinhold Vieth

Professor, University of Toronto, Departments of Nutritional Sciences and Laboratory Medicine and Pathobiology.

Click to View Dr. Michael Holick, Ph.D., M.D.

Professor of Medicine, Physiology and Biophysics; Director of the General Clinical Research Unit; and Director of the Bone Health Care Clinic and the Director of the Heliotherapy, Light, and Skin Research Center at Boston University Medical Center.

Click to View Dr. Cedric Garland, DrPH

Professor Emeritus in the Department of Family Medicine and Public Health at the University of California, San Diego.

 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