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Whoa, check it: Japanese-American men with diets low in vitamin D had greater risk of stroke later in life. This according to recent long-term study looking at 7,400 Japanese-American men living in Hawaii. Just another confirmation that the sun nutrient, vitamin D, is paramount in maintaining health and wellness.

The study, which began in the mid-to-late-1960s, looked at Japanese-American men between the ages of 45 and 68, and examined and interviewed them about their dietary habits at that time. The men were then followed up with 34 years later, whereby 960 were found to have died of stroke. The men with the lowest vitamin D in their diets had a 22% greater risk of stroke, and a 27% greater risk of ischemic stroke (blood-clot type). No difference existed for hemorrhagic (bleeding) stroke, however.

“Our study confirms that eating foods rich in vitamin D might be beneficial for stroke prevention,” said study author Dr. Gotaro Kojima, a geriatric medicine fellow at the John A. Burns School of Medicine at the University of Hawaii in Honolulu. He also stated that it is unknown at this time whether these results could be extrapolated to women or other ethnic groups.

So here I present just another study showing the importance of vitamin D supplementation, and again I ask how there can still be so many “authorities” unconvinced of the need to supplement. True, vitamin D can be found in foods like fortified milk, breakfast cereals, fatty fish and egg yolks, which are all good sources. And, of course, nothing beats the vitamin D production of our skin from the exposure to direct sunlight.

The good doctor Kojima does point out that synthesizing vitamin D from the sun becomes more difficult as people age, so older people especially should increase their dietary intake, and in my opinion take a good D supplement.

Once again, I’d like to point out that many experts, myself included, believe that the recommended blood D levels are too low; and while they may prevent some diseases, like rickets, optimum levels are almost 2-3 times more than the medical and dietary standards.

So Japanese-American men (and all people for that matter) need to get adequate sunlight (15-20 minutes sans sunscreen daily), eat vitamin D rich foods, and supplement. Hey, you can follow the authoritarian naysayers and skip supplementation, OR you can just freakin’ supplement. Which do you think comes with a heavier price to pay if wrong? Well then…nuff said.

People that take oral steroid medications, particularly children, could be at an increased risk for serious vitamin D deficiency. So says a recent study published in the Journal of Clinical Endocrinology & Metabolism.  Some conditions people take these drugs for are asthma, certain types of arthritis such as rheumatoid arthritis and autoimmune diseases like Crohn’s disease, lupus and multiple sclerosis.

Researchers looked at nearly 23,000 Americans in a government health survey, and found that those using oral steroid medications were twice as likely as non-users to have a severe vitamin D deficiency. Eleven percent (2,530 people) of those on steroids had a vitamin D level below 10 ng/mL–far below the minimum requirement to remain healthy. That compared with five percent (1,150 people) of study participants not on steroids.

Blood levels of vitamin D lower than 10 ng/mL:

associated with the most severe deficiency diseases: rickets in infants and children, and osteomalacia in adults. A concentration above 15 ng/ml (37.5 nmol/L) is generally considered adequate for those in good health. Levels above 30 ng/ml (75 nmol/L) are proposed by some as desirable for achieving optimum health, but there is not yet enough evidence to support this. ~ Wikipedia (as of 10/31/11)

The link was especially strong among children. Steroid users younger than 18 were 14 times more likely to have a vitamin D deficiency than kids not taking the medications.

The authors of the study point out the findings do not prove causality, but this should alert doctors and parents to keep an eye on vitamin D levels of the children taking these drugs.  Something else parents can do is make sure their children are out in the sun as much as possible. Some parents may inadvertently keep their asthmatic kids indoors, but I think this is a mistake. Lots of sunshine is necessary for the production of vitamin D. At the very least, the inhaler should be countered each time with a good vitamin D supplement.

As the severity of vitamin D insufficiency in North America is dismissed, data showing its pervasiveness continues to accumulate.  The smart reader will continue to get plenty of sun-screen free sun, and supplement if necessary (not so for those getting sun daily). And making sure that if you or your child are on oral steroids, you get your blood vitamin D levels checked.

Get those kids in the sun, parents–one out of every five American children aged 1 to 11 is vitamin D deficient. Dang! And the numbers are worse for blacks and Hispanics. Almost 90% of African American children and 80% of Hispanic children could be vitamin D deficient. Double Dang! All this coming from a new analysis at Harvard Medical School and Children’s Hospital in Boston.

Vitamin D deficiency can lead to many illnesses including infections, diabetes and even some cancers. Even the severity of asthma symptoms has been shown to be increased in children with low vitamin D levels. But the most common ailment attached to vitamin D deficiency is bone weakness, or rickets, common a century ago but still happening today with all to often frequency. D-D-D-Dang!

The RDA for treating and preventing rickets is 400 IU vitamin D daily, which can be obtained by drinking four glasses of fortified milk. Vitamin D can also be obtained from sun exposure, which unfortunately may be lacking in children residing in northern climates and those with darker skin tones. The explosion of computers and video games is also a risk factor for children that do not spend enough time outdoors. Further, many kids are not getting enough milk, cheese or fish–all good sources of vitamin D.

So what’s the answer? How about a good vitamin D supplement for junior? Can’t get them off the Madden 2010 and playing outdoors??? (many children found to be vitamin D deficient were also overweight or obese–D-D-D-Duh!). Then you’ve got to pick up a good supplement, period.

Then slap yourself across the noggin AND GET JUNIOR RUNNING OUTDOORS D-D-D-DANGIT! I mean, what’s the major malfunction??? It’s not rocket science: Kids need to be outdoors running, playing, wrestling, carousing, whatever–it’s the natural order of things. Video games–and that includes the Wiisorry–are for “sometimes“. That’s it, d-d-d-dagnamit! Vitamin D deficiency is no joke–don’t treat it like one.

Copyright © 2013 Dr. Nick Campos - All Rights Reserved.