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Old 07-05-2008, 12:57 AM   #1 (permalink)
 
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Don't run from the sun's Vitamin D benefits, experts say


Don't run from the sun's Vitamin D benefits, experts say


08:10 PM CDT on Thursday, July 3, 2008


By JEFFREY WEISS / The Dallas Morning News
jweiss@dallasnews.com


Here's a worry to cloud your carefree Fourth of July weekend fun: Is that sunblock you're slathering on to protect you from skin cancer actually making you prone to other diseases from a shortage of Vitamin D?
The best answer that medical experts can offer today is: maybe. But if you pay attention to your outside time and what you eat, you can have your sunblock and D it, too.
Not so long ago, Vitamin D was considered important mostly for helping keep bones strong. But medical studies released in just the past six weeks have linked shortages of the vitamin, actually a hormone, with heart disease and early death and suggest that adequate amounts can protect against kidney disease and colon cancer.
Add that to older studies that indicate that the vitamin has some beneficial effects on breast cancer and multiple sclerosis. And there's research that shows the vitamin is an important chemical signal for the proper growth and division of many kinds of cells in the body – an "epigenetic" hormone.
So doctors are paying a lot more attention to Vitamin D these days.
Jo Ann Carson, professor of clinical nutrition at UT Southwestern Medical Center, noticed the difference recently when she visited her doctor for a regular checkup and he brought up the importance of getting enough Vitamin D.
"He didn't say that two years ago," she said.
But here's the rub: The most natural way – some say the best way – to get Vitamin D is to spend time in the unblocked sun. Ultraviolet light interacts with a form of cholesterol contained in the skin to trigger the creation of the vitamin.
Experts say that about 15 to 20 minutes of unblocked sunshine – shorts and a T-shirt would be fine – will generate a day's worth of D for most people. But the variables are many: The time of year, time of day, amount of cloud cover, age, darkness of skin, weight and some medications can affect how much D gets generated in a particular person.
Then there's the worry that UV radiation from the sun is implicated in raising the risk for skin cancers. As the National Institutes of Health warn: "It is not known whether a desirable level of regular sun exposure exists that imposes no [or minimal] risk of skin cancer over time."
Some Vitamin D can be found naturally in a few foods that aren't exactly stars of the standard American menu: salmon, sardines, shitake mushrooms. The one food that has a significant amount is milk – because milk producers started adding Vitamin D in the 1930s to combat a bone weakness in children called rickets.
Fortified milk is Dr. Carson's D-boost of choice, she said.
But you'll need a lot of milk, particularly if nutritionists who say the current recommended standards are too low are right. The so-called "Adequate Intake" for Vitamin D is 200 International Units, which works out to about four cups of milk a day for an adult up to age 50. The recommendation is for 400 IU a day for people from 51 to 70 and 600 IU for people older than 71.
Earlier this year the American Academy of Pediatrics recommended that babies get 400 IU. And some nutritionists say that pretty much everybody needs more than that.
So what to do? Here are Dr. Carson's recommendations:
•Unless you have reasons to avoid it, drink the fortified milk – but be mindful of the fat intake. Fat-free milk has as much D as the whole variety.
•Consider a vitamin supplement if you find that you aren't getting enough sun or milk.
•And unless you burn very quickly or have other medical reason not to, go for the short time in the sun.
"That's a reasonable thing to do," she said. "But don't think that you are going to do that and then forget to put the sunscreen on."

SOURCE LINK: http://www.dallasnews.com/sharedcont...d.3632867.html
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Old 07-05-2008, 12:58 AM   #2 (permalink)
 
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Re: Don't run from the sun's Vitamin D benefits, experts say

It's ashame they think milk is one of the answers.... but still an article getting people to understand the sun really does have health benefits.
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Old 07-05-2008, 09:30 AM   #3 (permalink)
 
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Re: Don't run from the sun's Vitamin D benefits, experts say

Articles like this will have the derm's panties in a wad and should be banned (and, Eileen, if you persist in posting articles like this, you will be banned).

Doesn't anyone (besides me) feel sorry for a "poor ole" dermaterrorist who has gotten rich scaring the gullible public about the "dangers" of tanning?

Doesn't anyone (besides me) feel sorry for a derm who is making lease payments on his own, his wife's, his son/daughter's, and his bimbo's cars?

Doesn't anyone (besides me) feel sorry for a derm who is trying to make a $5,000 house payment at the same time he is paying $2,000 rent on his bimbo's apartment?

And if you don't feel sorry for the derm's, surely you "feel the pain" of the sunscreen companies who are making an obscene amount of money each year.

Folks, if the truth about tanning ever gets out to the public, the 10,000 rich and greedy dermatologists and the sunscreen companies will be in a world of financial hurt and so the welfare of 300 million American's must be ignored.

So her is the "mantra" we must help the derm's and the sunscreen companies preach.

Never mind the fact that all life on earth depends upon the sun and never mind the fact that controlled ultraviolet radiation exposure is good for you, everyone must avoid "any and all" sunlight exposure (the tanning police will be watching!) and there will be a life sentence given to anyone who patronizes an indoor tanning salon. Not only that, everyone must slather on a sunscreen six times (the sunscreen police will monitor this) a day no matter the time of day or season of the year.

The derm's and the sunscreen industry's financial solvency must come first and the well-being of the American public must not get in the way.

Last edited by Don Smith; 07-05-2008 at 09:37 AM.
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Old 07-05-2008, 09:45 AM   #4 (permalink)
 
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Re: Don't run from the sun's Vitamin D benefits, experts say

but the government will step in and fund their losses for their bad business decisions just like they are doing for the big banks that put out controversial loans ;)
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Old 07-05-2008, 03:33 PM   #5 (permalink)
 
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Re: Don't run from the sun's Vitamin D benefits, experts say

Do be aware that Vitamin D3 is itself photoprotective.

So if you raise your 25(OH)D with an effective strength supplement (2000 -4000iu/daily for 2-3 months) and then expose your skin to UVB you will find you tan quicker and with less propensity to burn.

I'm unhappy with anyone suggesting dietary sources such as milk as a viable source of D3.

Fortified milk MAY legally contain D2 and many people simply cannot use this synthetic form. Their body's do not convert it to D3 and thus although they have a higher D2 reading on the vit d test they still display the signs of insufficiency.

Also all the independent tests I have read on the accuracy of fortification show most samples do not contain the amount stated on the label mostly they underfortify so you are not getting a known amount as you do when you use a supplement of effective strength.

The adult human body needs up to 5000iu daily.
In the UK the average adult currently averages 2000iu/daily from sun/diet.
To get to the natural level where the body's daily needs are met and there is a surplus to store or to allow to flow into breast milk, we need to achieve 125nmol/l or 50ng.
That means at least an extra 3000iu/daily.
It simply isn't realistic to expect anyone to drink 30 glasses for milk extra daily.
In the UK it also isn't realistic to say the extra can be made up with regular sunbathing. Goodness knows I try hard enough to get out whenever it's possible but wind & cloud cover simply make it an uncomfortable option most of the time. Which leave supplements or tanning studios and while supplements are cheaper they don't provide the same almost instantaneous antibiotic/antifungal/antibacterial effect over the whole skin surface that the few minutes in a sunbed naturally achieves.
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