Archive for the ‘vitamin D’ Category

Vitamin D

Saturday, March 7th, 2015

Vitamin D is fat-soluble and effects more than 200 genes in your body. It is essential for optimal health. Yet there is widespread vitamin D deficiency.
If you lived at the Equator you probably wouldn’t need to supplement vitamin D. But here in Minnesota you only have three or four months where you probably can get enough D from the sun. They say that 20 minutes a day of exposure to the sun without makeup or sun screen is sufficient. But in the winter time the sun is too low to give you the needed vitamin D. To top this off the American Academy of Dermatology has said that vitamin D should not be obtained from unprotected exposure to ultraviolet (UV) radiation from the sun or tanning devices.

So the safest thing to do is to take a vitamin D supplement of 2,000 to 5,000 IU a day. After three months take a 25-hydroxyvitamin D blood test so you get your optimal blood level. The standard today is between 50-80 ng/mL year round.

You can check it out at Life Extension


Tuesday, April 9th, 2013

In 1941 a study in the journal Cancer Research showed people living in the higher latitudes had a higher rate of cancer. It was the lack of vitamin D that raised the death rate by 51%.

In 2006 the Journal of the National Cancer Institute showed the results of a large study that higher vitamin D levels, from 20 (ng/mL) to 50 (ng/mL) would reduce cancer occurrences  by 51%. That’s about 4,500 IU of vitamin D supplements.

That’s only part of the story. You will find the rest at Life Extension, May 2013

Vitamin D

Saturday, October 8th, 2011

This article taken from the August, 2011, Life Extension Magazine. For the complete story go to

In order to absorb calcium from the diet or from supplements, the human body requires vitamin D. For years, we believed that promoting calcium absorption from the intestinal tract was the chief function of vitamin D.33 But over the past decade there has been an explosion of scientific discoveries about vitamin D’s multiple roles throughout the body.34 We now recognize that vitamin D functions as a hormone, with receptors located in at least 35 different tissue types.34,35 That means the body’s overall requirement for vitamin D is much greater than we originally realized.33,36

With regard to bone health, vitamin D not only promotes calcium absorption but also its proper deposition in bone tissue, where it helps maintain the skeleton’s basic function as scaffold and protector of soft tissues.37 Elsewhere in the body, vitamin D acts at its specific receptors to promote immune function, subdue inflammation, reduce arterial calcification, enhance cardiac function, improve brain and nerve tissue performance, and even prevent cancer by regulating the cell replication cycle.34,38,39 Conversely, vitamin D deficiency is associated with not only bone diseases, but also cardiovascular disease, the metabolic syndrome, cancer, immune suppression, and autoimmune conditions such as multiple sclerosis, lupus, and inflammatory bowel disease.37,39-42

Despite the renewed scientific interest in vitamin D’s impact on human health, the prevalence of vitamin D deficiency remains high.43 Vitamin D3 (cholecalciferol) is synthesized in the skin from sunlight exposure and then converted into the active form, 1,25-dihydroxyvitamin D (calcitriol), by the liver and kidneys.37 But even in sunny Southern California, where one would expect most people to have sufficient vitamin D levels, almost 20% of people in one study had low vitamin D3 levels in their blood.44 In less sun-exposed regions, deficiency rates in excess of 50% have been documented.35,45

And remember that “deficiency” means exceedingly low levels of vitamin D. In aging individuals who don’t take at least 5,000 IU per day of vitamin D, approximately 85% have insufficient or “less-than-optimal” blood levels of vitamin D (measured as 25-hydroxyvitamin D).46

The combination of our increased knowledge about the importance of vitamin D throughout the body, and the widespread lack of adequate levels, has resulted in a rapidly growing international call for increased vitamin D intake.33,45,47

Many experts in the field recommend supplementing with doses of 2,000-10,000 IU per day in order to achieve optimal total-body vitamin D status for optimal skeletal, cardiovascular, neurological, immunological, and metabolic health.45,48-50

High Dose of Vitamin D Helps Lung Disease Patients

Friday, September 16th, 2011

Findings presented at the American Thoracic Society conference in Denver, May 13-18,2011, showed that a monthly dose of 100,000 IU (international units) of vitamin D given to COPD patients gave significant improvements in exercise capacity and respiratory muscle strength compared to a placebo group.

COPD is an affliction suffered mostly by smokers and is described as chronic inflammation.

Currently the United States government recommends 600 IU of vitamin D per day for adults up to age 70 and 800 IU for people over 70. This is way to little. I take 5,000 a day and feel that is a minimum dosage.

“Low levels of vitamin D in the blood have been related with muscle weakness,” said Miek Hornikx from the Katholieke Universiteit Leuven in Belgium.

More in Life Extension, August 2011.

Studies Show 75 Percent of People Low on Vitamin D

Saturday, August 6th, 2011

Poor diet, avoiding sunshine, age, geographic location all play a part in people having low levels of vitamin D. For example in northern climes there are only a few summer months when you can get enough vitamin D from the sun.

An easy solution is to take a vitamin D3 supplement.

Vitamin D Deficiency Impairs Lung Development

Tuesday, June 21st, 2011

The American Journal of Respiratory and Critical Care Medicine shows a relationship between vitamin D deficiency in mice and reduced lung structure and function.

Graeme Zosky, PhD, and colleagues studied two week old mice born to mothers that were deficient in vitamin D. Dr. Zosky said they have demonstrated a direct role for vitamin D in decreased lung function.

Am J Resp Critical Care Med. 2011 Jan 28

Greater Intake of Vitamin D

Monday, June 20th, 2011

Cedric Garland, DrPH, of the University of California, San Diego School of Medicine and his colleagues recently revealed that very much higher amounts of Vitamin D than currently recommended are needed to raise levels to those that help prevent breast cancer and other diseases.

Through the recommendation of several doctors I personally take over 5,000 units of Vitamin D3 each day.

Depression & Low Vitamin D

Thursday, December 2nd, 2010

Studies have shown there are vitamin D receptors throughout the brain and those people with low vitamin D are 85% more likely to be depressed than those with minimally adequate vitamin D.

Researchers at Georgia State University used data from the National Health and Nutrition Examination Survey to analyze serum vitamin D and depression in 7970 non-institutionalized U.S. residents, aged 15-39.

It’s still not clear what part vitamin D plays in our health functions but we see a variety of new areas where vitamin D plays a major role.

A general rule is taking 1000 to 2000 IU a day provides you with a “normal” but not adequate amount for optimal health.

The optimal range for vitamin D is 50 to 80 ng/ml. Under 20 ng/ml is associated with depression. Minimally adequate is considered 30 ng/ml.

Vitamin D3 & Breast Cancer

Monday, October 4th, 2010

Pink ribbons remind people of breast cancer but the statistics on breast cancer still stun: This year an estimated 200,000 women will be diagnosed and 40,000 will die—three times the number who will die of ovarian cancer—and science still hasn’t unlocked the mysteries of this relentless killer.

One thing that has surfaced recently is that autopsies show that women who have breast cancer are deficient in vitamin D3. This inexpensive vitamin supplement covers a whole range of health issues and yet people are not willing to follow good scientific evidence.

Take your vitamin D3.

Did You Know?

Thursday, July 1st, 2010

You lose 30-40,000 skin cells a minute. You first line of defense against pathological invaders to your body is your skin. Vitamin D is directly involved with adding new cells as well as helping with the immune function.

Be sure to take your vitamin D3 supplements.

Read the whole story in Life Extension, June 2010, p. 74