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Vitamin D Facts for women over 50 are very important to our overall health.

For many years it has just been seen as a vitamin to help keep our bones stronger so we would have fewer broken bones.

Recent discoveries suggest it has significantly more far-reaching effects than just your bone health, contrary to popular belief.

Vitamin D Facts are that research suggests 85% of people could be Vitamin D deficient without knowing it, leaving them with less than optimal health.

Current scientific research suggests that all cells and tissues in our bodies have Vitamin D receptors and further concludes that every cell and tissue needs Vitamin D for its well being.   Not only that, but Vitamin D is responsible for the regulation of over 2000 genes in your body.

Our skin naturally produces Vitamin D when exposed to direct sunlight for 15 to 20 minutes at midday. But for years we have been told to wear sun screen on all exposed areas of our body or cover them with clothing for fear of getting skin cancer.  The facts are, that skin cancer has increased since we have been using sun screens and covering our bodies.

Vitamin D facts are that we are now Vitamin D deficient instead of having optimal levels and it is affecting our bodies in many ways we have yet to discover.

Having to little Vitamin D (Vitamin D deficiency) may not have any outwardly obvious signs,  yet Vitamin D (specifically Vitamin D3) impacts most of our body.

The following list could be considered Vitamin D deficiency symptoms:

• Poor Immune System
• Heart Disease
  
• Over Weight
• Aging
• Skin
  
• Vascular system
• Weak Bones
• Muscle Weakness and Pain
  
• Depressed Moods
• Poor Digestion

and the list gets longer with new research being done.

Vitamin D Facts are that sunshine is the best way you can get your Vitamin D.  You cannot overdose on Vitamin D with sunshine because when our body has enough our skin just quits making it.  Anyone living in the Northern Hemisphere cannot get enough Vitamin D using the sun, because there is only a short period of time the sun is strong enough to produce Vitamin D in our skin.

Vitamin D Facts are:

• Individuals who are overweight have a greater need for Vitamin D because Vitamin D is oil soluble so it’s hidden in their fat

• Dark skinned people have higher melanin levels which blocks UVB radiation and limits the bodies ability to produce Vitamin D

• Elderly people,  as they age their skin loses the ability to make Vitamin D and also they spend most of their time indoors so they aren’t exposed to any sunshine.
  

Supplementing with Vitamin D3 is our only alternative to our lack of natural sunshine, as Vitamin D is rare in food and is only available in very limited quantities in eggs, liver and fatty fish.

To learn more you might want to read these articles, Vitamin D Information, Vitamin D Recommended Dosage

It is almost impossible to find foods high in Vitamin D.  That is one of the reasons we humans are becoming Vitamin D deficient.

Very few foods in nature contain Vitamin D. The flesh of fish (such as salmon, tuna, and mackerel) and fish liver oils are among the best sources.  Small amounts of Vitamin D are found in beef liver, cheese, and egg yolks. Vitamin D in these foods is primarily in the form of Vitamin D3 (cholecalciferol) and its metabolite 25(OH)D3 .  Some mushrooms provide vitamin D2 (ergocalciferol) in variable amounts.  Mushrooms with enhanced levels of vitamin D2 from being exposed to ultraviolet light under controlled conditions are also available.

Fortified foods provide most of the Vitamin D in the American diet .  Almost all of the U.S. milk supply is fortified with 100 IU per cup, of Vitamin D (25% of the Daily Value or 50% of the AI level for ages 14-50 years). In the 1930s, a milk fortification program was implemented in the United States to combat rickets,  a major public health problem at that time.  This program virtually eliminated the disorder.  Since a small amount of Vitamin D eliminated rickets it should stand to reason more would keep us healthier.  Other dairy products made from milk, such as cheese and ice cream, are generally not fortified.  Ready-to-eat breakfast cereals often contain added Vitamin D, and some brands of orange juice, yogurt, and margarine.  In the United States, foods allowed to be fortified with Vitamin D include cereal flours and related products, milk and products made from milk,  calcium-fortified fruit juices and drinks .  Maximum levels of added Vitamin D are specified by law.

DVs(DV=Daily Value) were developed by the U.S. Food and Drug Administration to help consumers compare the nutrient contents of products within the total diet. The DV for Vitamin D is 400 IU for adults and children age 4 and older.  Food labels are not required to list Vitamin D content unless a food has been fortified with Vitamin D.  Foods providing 20% or more of the DV are considered to be foods high in Vitamin D.

The U.S. Department of Agriculture’s Nutrient Database, lists the nutrient content of many foods.  A growing number of foods are being analyzed for Vitamin D content.

Since there are so few foods high in Vitamin D we need to use sunshine and Vitamin D Supplements to give us the optimum amount of Vitamin D our bodies need

To find the levels of Vitamin D we need for optimal health read this article Vitamin D recommended Dosages

Vitamin D Facts

Vitamin D Facts – Although typically categorized as a fat-soluble vitamin, vitamin D actually functions more like a hormone. The hormone serves as a precursor to the building block of calcitriol a powerful steroid hormone in your body. Calcitriol is an important nutrient that is responsible for maintaining normal calcium metabolism, which helps build strong bones and teeth.  Additional vitamin D facts:

• Low vitamin D may increase your risk of autoimmune diseases by as much as “300″ percent

• Important in absorbing calcium from food

• Helps build muscle

• Protects your brain cells from injury or inflammation

• Slows the growth of cells that may reduce the risk of most cancers up to 50 percent

• Crucial for fertility

• Glucose control

• Reduces high blood pressure

• Helps fight infections

• Improves the effectiveness of vaccines

International Unit (IU)

The International Unit (IU) is a unit of measurement based on an accepted standard and on biological activity of the substance. The substance for vitamin D has its own unique IU. What this means is that 100 IU of vitamin D does not equal 100 IU of vitamin E. Note: It takes 1000 IU of vitamin D to equal 25 micrograms (mcg) of vitamin D.

How to Test for Vitamin D Deficiency

Your vitamin D level can be measured by either a simple fasting or nonfasting blood test, which can be done by most any lab. Have a physician order a blood test to measure your Vitamin D 25-OH or 25-OH-D levels. At a minimum your Vitamin D 25-OH levels should be above 32 ng/ml (80 nmol/L). Usually there is no real need to check the Vitamin D-1-25-OH levels as they won’t reveal your deficiency status.

The current unit of measurement for vitamin D levels in the blood is expressed in ng/ml: nanograms per milliliter. You may also see vitamin D levels expressed in another measurement called nmol/L, which is nanomoles per Liter. To change ‘ng/ml‘ to ‘nmol/L‘ simply multiply the ng/ml value by 2.5.

Example: 40 ng/ml (40 ng/ml X  2.5) = 100 nmol/L

Understanding Lab Values / Levels for Vitamin D

•  Less than 10 ng/ml (less than 25 nmol/L) is considered a severe deficiency

• 10  – 32 ng/ml (25 – 80 nmol/L) is moderately deficient

• 33  – 49 ng/ml (82 – 124 nmol/L) is sufficient

• 50  – 100 ng/ml (125 – 250 nmol/L) is OPTIMAL for disease prevention

• 101 – 150 ng/ml (253 – 375 nmol/L) is considered an overdose

• More than 150 ng/ml (more than 375 nmol/L) is toxic

Vitamin D Sources

Foods – Different foods contain vitamin D but not in sufficient quantities to treat a moderate to severe vitamin D deficiency. Fish (oily types) such as mackerel, salmon, and sardines are good sources of vitamin D. Fish raised out of their natural habitat (farm raised) may not contain adequate levels of vitamin D. Other food sources are fortified milk, cheese, margarine, cereals, eggs, and beef liver.

Sunlight – Exposure to sunlight is the best way to get vitamin D but requires regular exposure to a large portion of your body.

Supplements – Based on the lifestyles we live we more than likely can’t raise vitamin D levels without supplementation. Depending on your current level you may require anywhere from 2,000 IU to 10,000 IU daily until your vitamin D level is in the optimum range. Be sure to consult with your physician and have your blood levels checked before starting daily doses greater than 2,000 IU.

Dr. Michael Holick is a leading researcher at the Boston University Medical Center and is a high-profile member of the vitamin D research community.  To get a FREE copy of an EXCLUSIVE interview with Dr. Holick click on the link below.

Click here for FREE Interview

Recommended reading: Vitamin D supplements 

Vitamin D in menopausal women promotes great benefits: Besides helping their bone density and bone health, it may ease some of their symptoms such as anxiety and mood swings.

Researchers are discovering that Vitamin D in menopausal women as well as in regular folks promotes normal cell growth throughout the body, working as a key factor in maintaining hormonal balance and a healthy immune system. Vitamin D is actually a hormone which becomes part of the physical composition of cells, aiding in the buildup and breakdown of healthy tissue and regulating the processes that support wellness in our bodies.

Well miladies, if you are in your mid-thirties or over, chances are you are either in the perimenopause, the years leading to the menopause; or perhaps, you’re already into it.  It’s nothing to be alarmed about.  On the contrary, it’s a period you should be aware of and learn about to assure a smooth transition.

During the perimenopause, you start missing your periods and may start feeling some of the symptoms prevalent in the menopause: Hot flashes/night sweats, mood swings/anxiety, loss of sexual drive, vaginal dryness and itching, insomnia, eating and weight issues, skin changes. Of course, those symptoms may vary from woman to woman. And there are some women that, luckily, may go through this stage of life without feeling any of the above mentioned symptoms.

At the University of Massachusetts scientists have found that a diet rich in calcium and Vitamin D can help control some PMS symptoms, such as tearfulness, anxiety, and irritability which are also some of the menopause symptoms.

The fact is that in the menopause, women suffer loss of the sex hormone, estrogen, which protects the bones. We’re not sure how sex hormones affect Vitamin D conversion, but we do know that when women have lower estrogen levels, they seem to have a harder time stimulating the mechanism that builds bone tissues.

Studies show that as many as half to two-thirds of the women in menopause have Vitamin D deficiency. Vitamin D in menopausal women can guarantee calcium absorption and healthy bones. That’s why it’s very important that women in their 30’s consciously decide to supplement with Vitamin D and be ready for a safe menopause.

Bones grow as the body grows and continues until about the age of 20, when your bones reach what is called “peak bone mass,” or maximum density and strength. After this point, bone removal begins and over time, leads to bone loss. The rate of bone loss is greatest in the first few years after menopause. After that, bone loss continues but in a slower pace.

After the menopause, our ovaries completely stop producing estrogen. Thus, our natural bone loss protection is gone. Some women may then develop osteopenia, a condition characterized by low bone density. Osteopenia can eventually lead to osteoporosis, which is a more severe condition with much lower bone density. This condition makes bones brittle and weak, and there is risk for fractures.

Why am I insisting on this subject? Because I don’t want you to become part of the statistics and be counted as one more case of osteoporosis. A menopausal woman with insufficient Vitamin D supply is a good candidate for future osteoporosis, especially if there is history of it in her family. Don’t be the next number. Vitamin D in menopausal women spells good health.

Take the essential steps to guarantee optimum bone health and a very smooth menopause:

● Talk to your family doctor about vitamin D testing and seriously supplementing with Vitamin D3 at 1000–2000 IU daily; especially if you don’t have the chance to get out in the sun very often and above all, during the winter months.

● Have a healthy diet that includes Vitamin D and calcium sources in it:

- Vitamin D: Fatty fish like mackerel, sardines, tuna and salmon; egg yolks; vitamin D fortified juices, cereals, and breads; and liver.

- Calcium: dairy products, green vegetables (broccoli, kale) and some fish.

● Take a high-quality multivitamin every day to supplement any nutritional gaps, especially one that includes omega 3.

● If possible, allow yourself some limited sun exposure, with unprotected arms and legs, between 10 a.m. and 2:00 p.m., at least three times a week (about 10 minutes for fair-skinned individuals, and 40 minutes for dark skinned ones). If you live in a latitude higher than 40°, sun exposure is only worth it within the months of summer to fall.

● Exercise at least three times a week: Make sure you do both weight-bearing exercises to strengthen your bones and muscle strengthening exercises to maintain bone mass.

- Weight-bearing exercises include walking, dancing, low-impact aerobics and  gardening.

- Muscle-strengthening exercises can be done with free weights, weight machines, or elastic exercise bands.

● Avoid smoking and drinking: Neither one will enhance your health.

Be healthy with Vitamin D and be safe!

You may also want to read Vitamin D Facts.

If you would like to listen 10-minute free interview with Dr Holick, a Vitamin D expert,  please click here.

Ligia Fleckenstein

It is really important that you know about Vitamin D facts that relate to heart disease.

Firstly, why is Vitamin D important ?

• Vitamin D is vital for the development, growth, and maintenance of a healthy body, from conception until death.

• A n adequate intake of Vitamin D is ESSENTIAL for maintaining good health, building a good immune system and reducing the risk of major disease or illness.

• If you have low Vitamin D levels increasing your Vitamin D intake can REDUCE YOUR RISK of severe heart disease, hardening of the arteries, cancer, diabetes and hyper tension.
  

Who is Vitamin D deficient?

• Up to 50% of American adults have Vitamin D deficiency.
• People in higher latitudes (Alaska, Canada and northern Europe) where the sun is too weak to power Vitamin D production.
• Deficiency is higher in winter when people spend less time outside and there are fewer hours of daylight.
• Older people are generally Vitamin D deficient because the skin is less efficient at synthesising Vitamin D and the kidneys have a reduced ability to convert vitamin D into its active hormone form. Older people also tend to get less sun exposure.
• Obese people are less efficient at producing Vitamin D in response to sunlight. Vitamin D gets trapped in fat cells and cannot easily exit.  Obese patients need at least twice as much Vitamin D as a normal weighted individual in order to maintain normal Vitamin D levels (1).

What will happen if I’m Vitamin D deficient?

People with low Vitamin D levels have a significantly higher susceptibility to hyper tension and cardiovascular disease.

Vitamin D deficiency:

• increases the risk of heart disease
• predisposes the body to high blood pressure, congestive heart failure and chronic blood vessel inflammation (associated with hardening of the arteries).
• affects the production of rennin which is one of the most important hormones regulating blood pressure (2).
• is linked to other major associated heart disease risk factors such as obesity and diabetes.
  • can alter hormone levels and immune function which can increase the risk of diabetes, a major contributor to cardiovascular heart disease.
  • obese people are at greater risk of Vitamin D deficiency, as they are less efficient at producing this hormone.
• people with low Vitamin D levels are twice as likely to have a heart attack, stroke, or other heart-related condition that individuals with higher levels of vitamin D (examples: 3,4).

So what can I do?

• We produce Vitamin D when our skin is exposed to the sun. Have 5 to 15 minutes of exposure (for Caucasian skinned people) to the sun at least 2 or 3 times per week in the spring, summer and autumn between the hours of 10am and 3pm. People with darker skins should spend longer outside. Expose your arms and legs, but always put sun cream on your face, neck and upper torso.
• Take daily Vitamin D supplements (at least 1000IU per day)
• Food high in Vitamin D can help but is not sufficient to make up equired daily intake of Vitamin D. Oily fish such as salmon, tuna and mackerel provide the best source of Vitamin D.

Vitamin D facts – research that shows how increased Vitamin D intake can reduce heart related illnesses:

• The risk of developing type II diabetes is reduced by as much as 33% in men and women who increase their intake of Vitamin D above 800 IU/day along with 1,000 milligrams of calcium (5).
• In the 1960’s Finnish children routinely received 2,000 IU of Vitamin D per day during their first year of life.  These children were followed for the next 31 years. They had a reduced risk of developing type I diabetes (by 78%) in comparison to children who were Vitamin D deficient during their first year and had an almost 300% increased risk of developing type I diabetes over the next 31 years (6).
• Comparing Vitamin D levels in 3, 400 older American adults (65+ years) researchers found that people with low Vitamin D levels were 3 times more likely to die from heart disease and 2.5 times more likely to die from any cause compared to older adults with optimal Vitamin D levels (7).
• A study of 1,739 older adults (average age 59, all Caucasian) found that those with Vitamin D deficiency (below15 nanograms per milliliter (ng/mL) had twice the risk of a cardiovascular event such as a heart attack, heart failure or stroke in the next five follow-up years compared to those with higher levels of Vitamin D, even after adjusting for high cholesterol, diabetes and high blood pressure (8).
• The above study found that participants with hypertension and a Vitamin D deficiency had about twice the risk of having a cardiovascular disease event in five years (8)

These Vitamin D facts show just how CRITICAL Vitamin D is for maintaining long-term health and for reducing your risk of heart disease. Optimum Vitamin D levels are your insurance to long-term health.

We invite you to download our free report showing 8 steps on how to become fit and healthy and decrease your risk of heart disease.

Find out more about the benefits of Vitamin D for heart disease, Vitamin D deficiency Symptoms and Vitamin D Information.

Here’s to your long-term good health!

Claire

Articles cited:

1. Dr E. Giovannucci et al. 25-Hydroxyvitamin D and Risk of Myocardial Infarction in Men: A Prospective Study. Archives of Internal Medicine 2008, 168(11) p 1174-1180.
2. MF Holick. High prevalence of Vitamin D inadequacy and implications for health. Mayo Clinic Proceedings 2006: 81(3) 353-373.
3. Dr. M. Holick et al. in New England Journal Of Medicine 2007;
4. Wortsman J, Matsuoka LY, Chen TC, Lu Z, Holick MF. Decreased bioavailability of vitamin D in obesity. Am J Clin Nutr 2000;72: 690-693.
5. Pittas AG, Dawson-Hughes B, Li T, et al.  Vitamin D and calcium intake in relation to type 2 diabetes in women.  Diabetes Care 2006:29:650-56.
6. Hypponen E, Laara E, Jarvelin M-R, Virtanen SM.  Intake of Vitamin D and risk of type 1 diabetes: a birth-cohort study.  Lancet 2001;358:1500-1503.
7. Massachusetts General Hospital (2009, September 22). Insufficient Levels Of Vitamin D Puts Elderly At Increased Risk Of Dying From Heart Disease. ScienceDaily. Retrieved November 1, 2009, from http://www.sciencedaily.com­ /releases/2009/09/090921134654.htm
8. American Heart Association (2008, January 8). Lack Of Vitamin D May Increase Heart Disease Risk. ScienceDaily. Retrieved November 1, 2009, from http://www.sciencedaily.com­ /releases/2008/01/080107181600.htm

Vitamin D facts in children research is discovering that we, the United States, are having a serious problem.

The numbers range from 9-70 percent. This means 1-7 out of 10 children here in the U.S. have low Vitamin D levels.

The researchers analyzed data on more than 6,000 children, ages 1 to 21, collected by the National Health and Nutrition Examination Survey 2001-2004.

The researchers found that 9 percent, or 7.6 million children across the country, were Vitamin D deficient and another 61 percent, or 50.8 million, were Vitamin D insufficient.

These Vitamin D facts are pretty scary.

When we think of children’s health we generally think Vitamin C for strengthening the immune system and lots of hand washing.

Recent study’s show that possibly Vitamin D plays a way more important role in keeping our kids save and healthy as we thought.

Newly found Vitamin D facts are the correlation between low levels of Vitamin D and flu out breaks.

Michael Holick, one of the world’s top 10 Vitamin D researchers, says that immune cells have a Vitamin D receptor, and that the cells activate Vitamin D as a response to infection.

“What Vitamin D really does is play a sentinel role,” said Holick, a professor of medicine, physiology and biophysics at Boston University School of Medicine.

First, it is used by immune cells to fight the virus. Then, it helps temper the overall immune response and limit inflammation.

To me the most important Vitamin D facts are that it actually helps children to be strong and healthy. To protect your kids from the flu this winter season  make sure they are getting lots of it.

In talking with parents I have noticed that there is a lot of confusion as to whether Vitamin D2 or D3 is what we and our children need.

From my research I have come to the conclusion that Vitamin D3 or Calciferol is what we need.

Vitamin D3: What is it?

Vitamin D3, Calciferol, is a fat-soluble vitamin. It is found in food, but also can be made in your body after exposure to ultraviolet rays from the sun. The liver and kidney help convert Vitamin D3 to its active hormone form.

The major biologic function of Vitamin D3 is to maintain normal blood levels of calcium and phosphorus . Vitamin D aids in the absorption of calcium, helping to form and maintain strong bones. It promotes bone mineralization in concert with a number of other vitamins, minerals, and hormones. Without Vitamin D, bones can become thin, brittle, soft, or misshapen.

Vitamin D prevents rickets in children and osteomalacia in adults, which are skeletal diseases that result in defects that weaken bones, and as we now know plays a major role in strengthening the immune system.

What are the sources of Vitamin D3?

Only a few foods naturally contain significant amounts of Vitamin D3, including fatty fish and fish oils.

Important to keep in mind when supplementing with fish oil is to make sure they don’t contain solvents or heavy metals.

Exposure to sunlight

Exposure to sunlight is an important source of Vitamin D. Ultraviolet (UV) rays from sunlight trigger Vitamin D synthesis in the skin. Season, latitude, time of day, cloud cover, smog, and suncreens affect UV ray exposure. For children it is recommended to spend 10-15 minutes a day without sunblock in  direct sunlight. Most of our kids spend their entire day inside especially during the colder month.

How much Vitamin D do we need?

Optimal 25-hydroxyvitamin D values are: 45-50 ng/ml or 115-128 nmol/l.

Normal 25-hydroxyvitamin D lab values are: 20-56 ng/ml 50-140 nmol/l.

Your Vitamin D level should never be below 32 ng/ml. Any levels below 20 ng/ml are considered serious deficiency states.

Find more info in our Vitamin D dosage article

To sum it up Vitamin D facts in children are:

A lot of our children suffer from low levels of Vitamin D.

Children need Vitamin D3

Vitamin D deficiency leads to rickets, low immunity, possibly diabetes and other autoimmune diseases

Vitamin D deficiency symptoms are low immunity, frequent colds and infections

Children need to be in the sun for 10-15 minutes a day without sunscreen

Children need to supplement.

What are good supplements for children and what is important to know about supplementation? Read here

Find more Vitamin D information here

Recommended reading: Vitamin D supplements

Get our free 43 minutes Children’s Health Report

Vitamin D Facts Related to Moods

In this article we will explore an aspect of how Vitamin D affects moods. Sometimes awareness of irritability is absent until treated and you get a chance to reflect on the difference between how you feel now and how you used to feel. What I hope to accomplish is to convey in ordinary terms the mass of medical information pared down to essentials so that it is easy to take in. I’ll do all the hard work for you!

First of all we run into problems because normally we don’t go straight to the doctor for small problems we suspect or symptoms we think of as inevitable. In fact we get the doctors quite used to dealing with advanced cases and it’s during routine blood work that surprises are uncovered. My own reason for avoiding doctors is the fear factor (and I am not suggesting you do the same!); that is, whenever I hear anything at all to do with doctors is when some extreme procedure is being performed as part of the mechanistic model. In other words, when it’s too late the surgeon does what he knows best. We are not machines, to be sure, but constant care is required along the lines of daily habits. That’s being proactive.

What I’ve discovered I’ll share with you…and what I’ve found may help you in your search to get your emotions under control naturally. Now Vitamin D facts point to a relationship to calcium. Emotions are worked off in the kidneys, and triggers are found in the 4 small glands that are in front of the neck, behind the thyroid. They are tucked in there but are totally different in function. What, you may ask, has this got to do with moods? Well, just about everything. Because we are deficient, for the most part, in Vitamin D the fact is it’s like your bones are melting without it. Calcium is supposed to be 95% in your bones and we pretty much get enough calcium in our diet. High intake of calcium without balance gets us into trouble and turns from good to bad.

Fact: Vitamin D is a hormone. This hormone works with the parathyroid hormone to control calcium absorption and affects the deposit of calcium and phosphate in the bone tissue. Your kidneys also help calcium levels.  Trouble begins when too much calcium has been absorbed from the small intestine and overpowers your kidneys.  Those with a super active parathyroid should not take any supplements that contain calcium without a doctor’s approval.

The odd finding is that if you go down the road of “just take it out, and stop the pain” you will feel better and in more than half of the people depression lifts (no longer needing antidepressant medications after having the surgery). Those that go for surgery to take out all or part of those pesky tiny glands hiding near our throat that become over active are afterward prescribed…you guessed it: Vitamin D. Anyway, it’s called hyperparathyroidism and 28 out of 100,000 in the US will develop this, mostly women between the ages of 50 to 60. Personally, I’d rather avoid extremes!

If you have a diagnosis of too much calcium in your blood and you are treated for it, what you notice is that you thought you were feeling fine before. But all of a sudden you’re sleeping well, have better memory AND you’re not irritable anymore! My feeling on this is we put up with far too much, adapt and call it normal. But that is not health at its best, and my intention for you is to raise your expectations and not settle for less than optimum wellness.

In conclusion, pay attention and start taking notice of moods especially. A question: is it really entirely on the outside that “gets to us”, or does our body play an important role on how we feel? For my part, the facts are in: Vitamin D is a player in my overall mood.

To hear what world renowned researcher Dr. Michael Holick has to say download his interview here

Cathy Fletcher

Vitamin D Deficiency Symptoms

Vitamin D Information