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


Rare Genetic Variant Linked to MS Risk, Vitamin D Levels
Oct 20, 2017

Identifying more of the rare genetic variants of multiple sclerosis (MS), which decrease vitamin D levels dramatically, could help researchers better understand the mechanisms by which vitamin D insufficiency influences susceptibility to MS.

To increase this understanding, an international team recently searched for low-frequency genetic variants that strongly increase the risk of vitamin D insufficiency. Their search identified a synonymous coding genetic variant that has the largest effect on vitamin D levels detected so far in the European population. Results of their analysis also provided further support for the role of vitamin D insufficiency in the development of multiple sclerosis.

“Our findings suggest that almost 1 person in 20 of European descent carries a mutation that confers a twofold risk of having low vitamin D levels,” Despoina Manousaki, MD, FRCPC, (pictured) a pediatric endocrinologist and PhD candidate in the department of human genetics at McGill University in Montreal, Canada, said. “Carrying the same mutation increases the risk of developing multiple sclerosis by 40%.”

full story . . .
Rangers boss Pedro Caixinha believes SUNLIGHT can help his team reach the very top as he speaks of need for Vitamin D
Oct 16, 2017

PEDRO CAIXINHA has urged his players to top up their tans if they want to become Premiership challengers.

The Rangers boss has encouraged his squad to head abroad to warmer climes or use sunbeds whenever possible.

Caixinha is convinced increased levels of vitamin D will lead to increased performance on the pitch.

Former Old Trafford boss Sir Alex Ferguson shared the same philosophy and had tanning booths installed at the club’s Carrington training base to compensate for Manchester’s lack of sunlight.

Caixinha said: “Pedro Mendes told me about the need for sunlight. He used to go on a sunbed to make sure he got vitamin D.

“The players can also take a plane and go wherever they want on their time off. It is part of their lives and they need to understand it.

full story . . .
Vitamin D supplements protect against severe asthma attacks, study shows
Oct 05, 2017

Asthma sufferers could halve their risk of suffering a severe attack which requires hospital simply by taking a vitamin D supplement, a new study suggests.

Researchers at Queen Mary University of London found that the number of people visiting A&E because of an attack dropped from six per cent to three per cent in people taking vitamin pills.

There was also a 30 per cent reduction in the number of asthma sufferers requiring treatment or steroids for attacks.

full story . . .
Low vitamin D associated with CV death, heart failure
Sep 29, 2017

Adults with a serum 25-hydroxyvitamin D level of 55 nmol/L or lower are at increased risk for all-cause mortality, cardiovascular death and heart failure, according to a 20-year retrospective analysis of Australian patient data.

To date, randomized controlled trials of vitamin D supplementation have not shown a protective effect on CV events or death, Kun Zhu, PhD, of the department of endocrinology and diabetes at Sir Charles Gairdner Hospital in Newlands, Western Australia, and colleagues wrote in the study background. However, many trials have limitations that hamper interpretation, including a study design aimed at detecting musculoskeletal outcomes rather than CVD outcomes and heterogeneity in the supplementation dose and interval.

full story . . .
Good Day Sunshine: Vitamin D In Smart Doses Helps Avert Many Problems
Sep 18, 2017

he sun's out, so go out and play.

If you're like me, you probably heard this admonishment more than once from your mother or a friend's mom while growing up. Yet despite how annoying the advice may have seemed when a favorite television show felt like a better option, health experts are moving ever closer to agreement that it's among the best pieces of advice any of us will get.

The benefits of exercise and fresh air aside, what we often fail to appreciate while outdoors is simply the sunlight — that life-sustaining energy that bestows a myriad of biochemical perks on us and the absence of which is extraordinarily bad for our health.

For reasons best understood by the biochemists and endocrinologists, the ultraviolet energy in sunlight converts a cholesterol-related compound found in the skin to vitamin D. A little more jiggering by native enzymes and some magic performed in the liver and kidneys and you get a bioactive hormone that regulates an array of biological functions ranging from bone formation to cell communication throughout the body.

Now, after years of telling us that too much sunlight is the enemy that leads to wrinkles and skin cancer, many scientists are adopting a more balanced position on sunlight. Evidence is growing that the right amount of vitamin D, derived from sunlight and diet, may play a role in preventing many ailments — including childhood asthma, some cancers, diabetes, autism and autoimmune disorders such as multiple sclerosis (MS) — or in reducing their severity. It also protects against acute respiratory tract infections that can trigger asthma attacks, particularly in children.

full story . . .
Low vitamin D levels linked to risk of multiple sclerosis
Sep 18, 2017

New large-scale European research has found that vitamin D levels in the blood could predict a person's future risk of developing multiple sclerosis.

Although previous studies have already suggested a link between vitamin D and the risk of MS, study author Kassandra Munger, of the Harvard T.H. Chan School of Public Health in Boston, explained that these studies have been small in size.

The new research however used blood sample from more than 800,000 Finnish women to see if correcting a vitamin D deficiency in young and middle-age could reduce the future risk of MS.

full story . . .
Vitamin D Day
Nov 02, 2017        9:00 am

Vitamin D Day

November 2, 2017

Please share and join our Thunderclap to support:

For more information go to:

event details
21st Vitamin D Workshop
May 16, 2018        

21st Vitamin D Workshop


Barcelona, Spain - May 16-19, 2018

event details
If you are not taking vitamin D daily - then it may not be working
Aug 03, 2017

by Carole Baggerly, Director at GrassrootsHealth

Today I have decided to get all the exercise I will need this month. So, I am going to get up, head to the gym and do 15 different sessions of cardio interspersed with 15 different sessions of my weight machines. Then, I will take a yoga class to round out the day. 

Ridiculous - right? 


full post . . .
Are People Really Taking Sky-High Doses of Vitamin D?
Jul 11, 2017

By Perry Holman, Executive Director, Vitamin D Society

A new study1 recently reported trends in vitamin D supplementation in the USA from 1999 to 2014. It found that that vitamin D supplement use of ≥1000 IU or more per day increased from 0.3% in 1999 to 18.2% in 2014. Also vitamin D supplement use of ≥4000 IU per day increased from 0.2% in 2007 to 3.2% in 2014.

The researchers made this key point in their discussion:

“Overall, 3% of the population exceeded the tolerable upper limit of 4000 IU daily, and may be at risk of adverse effects as a consequence”

But how many people were really supplementing over 4000 IU/d? If they were just taking 4000 IU/d there would be no risk as this is the safe upper limit and does not require doctor supervision.

full post . . .
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 . . .

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
Click to View 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