Posted on 10/26/2016 4:00:18 AM PDT by blam
I remember that thread. Thanks. Taking a D3 right now.
I take about 7,500 IU daily to maintain a level around 50-60 ng/ml. I used to stop in the summer because I’m outside a lot then, but my level would drop, so now I just take it year round. The older you are, the less able your skin becomes to convert sunlight to D3.
As for the K2, there’s a fairly expensive brand out there, BioTech’s D3 Plus, that has several cofactors believed to work in concert with D3. It has vit K, magnesium, zinc, and boron included in the mix. Because it’s expensive, I mix in a straight vit D3 of a good, but cheaper, brand along with the BioTech product. If cost isn’t an issue, I’d just go with BioTech’s product.
A good source of information is this site: http://www.vitamindcouncil.org
On that page you can sign up for a regular email newsletter. After you’ve browsed several issues, you’ll be convinced to consider D3 supplementation or getting more sun. They cover many of the recent studies as they come out and it’s interesting how many medical issues correlate with D3 deficiency. And it’s not a site that just publishes the pros. If studies are inconclusive, or show a disadvantage, or no effect, they cover those too.
One of the main reasons so many studies are now being done is that the government doubled the Tolerable Upper Limit to 4,000 IU just a few years ago. That enabled scientists to ethically administer those higher doses in studies, and that’s why they’re finding more results. The lower levels wouldn’t get D3 levels high enough to be effective.
I was wondering if 5000 iu / day was too much... then I found this:
If you’re fair skinned, experts say going outside for 10 minutes in the midday sun—in shorts and a tank top with no sunscreen—will give you enough radiation to produce about 10,000 international units of the vitamin.
Grabbed some cheap cod Liver Oil and it says “plus vitamins A and D”.
Cod liver oil with A and D added...
I have no idea what this is. Next time I’ll read the fine print before I buy.
flr
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