Skip to comments.How much vitamin D is enough? Report sets new levels - Megadoses of 'sunshine vitamin' don't...
Posted on 11/30/2010 5:49:14 PM PST by neverdem
Megadoses of 'sunshine vitamin' don't prevent disease, may be harmful
WASHINGTON For the past few years vitamin D has been the "it" vitamin, with studies wildly trumpeting the supplement's role in strengthening bones, reducing the risk of some cancers, heart disease, along with fighting autoimmune diseases and diabetes. But long-awaited new dietary guidelines say there's no proof that megadoses of the "sunshine vitamin" prevent cancer, diabetes or other conditions.
While some people will need a bit more vitamin D than they're already getting, some studies suggest that too much could actually cause some kinds of cancer, according to the panel of experts at the prestigious Institute of Medicine, the health arm of the National Academy of Sciences.
"More is not necessarily better," cautioned Dr. Joann Manson of Harvard Medical School, who co-authored the Institute of Medicine's report being released Tuesday...
(Excerpt) Read more at msnbc.msn.com ...
I’m so pasty pale I get all the vitamin D I need just in the sunshine exposure from a 20 minute drive to and from work every day.
It will be something else next week. I take 800 a day and I am not going to change.
A good rule of thumb with anything is keep doubling the dose until your urine is saturated with bright, red, healthy blood.
So who paid for the study? Just asking.
I don’t know about Vitamin D, but the “authorities” seem all hot and bothered to take away our vitamins and healthy foods.
Doubt everything they say.
let's see the studies...I can cite bunches of studies that say otherwise
Oh sure, now that millions are wolfing it down like big macs...
So we are worried about people getting cancer from too much Vit E supplements, but not these dumbass TSA body scanners? Rrrriiiiiigggghhhhhtttttt!!!
The food police can kiss it. I have my own brain & will take whatever supplements I damn well please. This is all BS anyway.....I don’t buy this study at all
The Government consistently lies regarding our needs re: Vitamins, supplements, Aminos, probiotics etc. They are in lobbyist beds with Monsanto (frankenfood) and big pharma.
800 mgs. absolutely!
SB510 today proves that we will will no longer be eating real food unless we grow it and cultivate it ourselves.
These people are all making money off of trying to zombitize us.
Scanners GMO corn, cotton, soy,monsanto..you name it...we are so screwed.
The vitamin D blood test results are not reported as nanograms(ng). They usually reported as nanograms per deciliter(dl), i.e. concentration.
If that's your criterion for health, fine. The probablitity however is that higher doses will have a beneficial effect on all sorts of functions never before studied systematically.
An arbitrary dose of around 1000 mg daily is a fair measure which has no known negative side effects.
I take 4000iu a day and — knock on wood — no longer get sick, even when exposed to sick people... but maybe that is the problem.. they don’t want us living longer —do they?
The ‘truth’ is that there is no one set amount that is ‘correct’ for everybody.
S.510 means that homegrown food can be “regulated.”
All these vitamin reports come out in order for our government to start taking away peoples’ ability to get vitamins in certain dose levels.
You can kill yourself with your vitamins. We will protect you from yourself.
I can take a whole bottle full of vitamin c and probably have an acidic stomach. If I take a whole bottle of tylenol I’m dead.
Yup you know we stupid drone citizens can’t be trusted to research herbs and vitamins and determine what doses we want to take. Nope gotta have a doctor tell us and prescribe what THEY think is good for us.
For Christmas, Lord, I want every bureaucrat and government subsidized researchers and scientists to just go away. We really must export them all to countries that do not have the “benefit” of their expertise. While we’re at it Lord they can have all our lawyers and environmental extremists.
The amount in vitmamin D supplements or in multivitamins is usually expressed as International Units(IU).
I mindlessly trust absolutely everything “experts” say, you bet!
Why not? Palm Beach County now regulates home grown puppies.
Didn’t an NIH study about 10 years ago prove that 2,000 IU / day resulted in a marked decline in cancer rates?
The taxpayers paid for this review by the Institute of Medicine, the health arm of the National Academy of Sciences.
I don't recall.
Didn't another report come out today praising Vit D?
Harvard studies laying groundwork for government shenanigans?
I would believe that.
RE: “Didnt an NIH study about 10 years ago prove that 2,000 IU / day resulted in a marked decline in cancer rates?”
Probably; that would explain why the brand I’m buying has capsules with 2000 IU each of “D” -—
Recommendations change all the time. Soy was good.......until it wasn’t — Vitamin E — same thing — take this, no, don’t take it — MAKE UP YOUR MINDS, EXPERTS!
I’m so sick of this I could spit nails!
It is not how much you choose to take; it is how much your circulating blood level is. If you are seriously below the norm, you DO need supplements.
I question this study until I read more. I know people who take Vitamin D and can’t get their levels anywhere near normal. That means they are using what they are ingesting.
Since Vitamin D is stored in fat, it is not until the fat stores are saturated that one can get into trouble; the circulating blood level can then rise and dramatically. That’s why I’d never recommend messing with taking fat soluble vitamins—like D—unless they are being measured and yes, by a good lab.
Roger that...gotta hide our gardens now!
How crazy is this? And HOW freakin stupid are our Senators?
What about 5000 mg. ?
My wife has been a primary school teacher for 30+ years. Until last school year she has always gotten her flu shot and has brought home every flu and cold that the kids have brought to school. Last year when school started she commenced to taking 10k iu a day of D-3 and did not get any flu shot. She did not bring home any respiratory maladies though her classroom was full of it for at least a third of the school year. She repeated for this year and has brought no illnesses home so far. I take the stuff, too. I work at night and see little sun, even in the summer. I have had none of these maladies, either but then never did get them much, anyway.
The wonder drug.
My Nephrologist actually measures my level once a year and I have come up from below normal to mid-range on 4000 - 5000iu a day and I live where we have sunshine 300 days a year... yet I was below normal.
So I don't care about their stupid studies - it worked for me.
HA..if you took “a whole bottle of vitamin c”...you’d be spending a lot of time in the bathroom...
Glad to hear you have it tested. I am not surprised by your comments. I believe that studies showed that a good portion of Minnesotans had levels close to half normal (long winters; low sun; shortened summer). By contrast, we are now all indoctrinated to slather on SPF sunblock 4 million if we go into the sun. Since UV irradiation is needed to convert the precursor to the active vitamin, people are getting deficient even in sunny climes.
I know docs who now prescribe Vitamin D supplements routinely to every woman over 60 (plus calcium). I believe the evidence shows that it helps stem later osteoporosis.
Point is, if you know your circulating level, and a doctor is advising, I believe it is of great benefit. The old standard value was 400 IU per day and that is what was derived from fortified milk. I believe that is too low personally and am glad the article has upped the level to at least 800. I am still big on having people tested to see if their levels are too low.
Yes (and the very example is ludicrous, but government would “protect” us from ourselves you know) but it would not kill me. Whole bottle of tylenol would.
I can tell a significant difference in how I don’t catch stuff since I have been tested and brought the levels up in my blood stream. You mentioned osteo, I had my bone density testing done last year and my bones are equivalent of a woman about half my age, as a non-drinker, non-smoker and I don’t drink carbonated drinks (high in phosphorus as you probably know) it seems I am doing something right with my supplement regimen.
This is poor advice. What is needed is for anyone concerned to go in and have your vitamin D levels tested. Sometimes it is hard to get vitamin D from either sun or supplements, and under 40 (units?) means you are far more likely to get sick.
I was taking around 2000 units a day, plus it was warm fall and I was getting outside a little every day. I got tested and my level was 20. That is unacceptable. I now am taking 10,000 units a day and will go back for another test.
Seriously, telling people how much to take is a bit ridiculous, if a normal healthy woman is taking 2000 units a day and still deficient per a blood test. If that “prestigious” institute wanted to be truly conscientious it would ask people to be tested to know their proper dose of supplementation.
FWIW, I have been very healthy lately, even after being around a sick grandchild.....daily visits to dad in hospital..... assisted living & rehab facilities...and the public in general with coughs and sneezes....
I also take 2 tsp of fish oil per day.
More good points here....http://www.freerepublic.com/perl/pings
The problem with determining the daily requirements for different vitamins and nutrients is with doing controlled experiments - you can’t deprive people of food.
There is a pattern here.
Every time a benefit is demonstrated from a substance, whatever it may be, the establishment scammers publish a foolish ‘study’ to ‘debunk’ it.
Are people really stupid enough to listen to these failures telling them what works doesn’t work?
> “Soy was good.......until it wasnt”
No credible scientific study has ever shown any benefit from an unfermented soy product.
Fermented soy, such as natto, or fermented tofu has many benefits.
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