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is increasing Vitamin D without sunlight even possible?

vitamin d sunlight winter light tanning

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#1 TheBatman

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Posted 06 October 2016 - 04:47 AM


About a year and a half ago I found out I had low vitamin D levels from a doctor. He recommended I get 20-30 min of sunlight exposure 2 to 3 times a week as well as taking a d3 supplement.

 

This seems to keep things normal until winter hits and I can't really get much sunlight, and if I do it's usually just my face. Living in the northern United States, the winter makes up most of the year and it's not very sunny more than 3-4 months out of the year. 

 

I can take d3 supplements during the winter, but to be honest I don't think d3 supplements are at all the same as the vitamin D made from sunlight and I don't notice much from taking them.

 

Moving somewhere else isn't really an option at the moment and I would rather not get vitamin D from tanning salons (it's very short term benefit vs long term possible problems).

 

Are there any other options out there anyone is aware of?



#2 OneScrewLoose

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Posted 08 October 2016 - 04:31 AM

I can take d3 supplements during the winter, but to be honest I don't think d3 supplements are at all the same as the vitamin D made from sunlight and I don't notice much from taking them

 

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Sorry to burst your bubble, but D3 is D3. You're not supposed to notice anything from taking D3, it's a preventative measure. In fact, it has hard to get adequate D3 from the sun alone, that's why many here supplement. The idea that 15 minutes outside give you enough D3 is a myth. I personally supplement 2000 IU per day of Vitamin D3. If you want to see for yourself, get a blood test for D3, specifically testing '25-OH' as a marker (there are other markers that are not as useful). You want about 45-60 ng/dL. I was supplement 5000 IU at one point and reached 70ng, So I cut back. I highly recommend Vit D3 supplementation, as it can be preventative in numerous autoimmune disorders, is dirt cheap, and is a very small pill to swallow. Few supplements have as much scientific backing as this, and few are as easy to test to see what levels you have as 25-OH bloodwork.


Edited by OneScrewLoose, 08 October 2016 - 04:32 AM.


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#3 Hip

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Posted 09 October 2016 - 03:53 AM

I can take d3 supplements during the winter, but to be honest I don't think d3 supplements are at all the same as the vitamin D made from sunlight and I don't notice much from taking them.

 

Sunlight on the skin not only makes vitamin D, but also cholesterol sulfate, which is a signaling molecule, and also used in cellular membranes. Plus the higher amounts of light found in summer are detected by melanopsin-containing retinal ganglion cells in the eye, which regulate circadian rhythm and human behavior (these cells are also involved in seasonal affective disorder, aka: winter depression).

 

So if you feel better in the summer, it may not just be due to vitamin D.


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#4 OneScrewLoose

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Posted 10 October 2016 - 09:25 AM

I did not know that, thanks for the fact. In case your post was counterfactual to mine, that is a separate molecule, and that does not change the fact that the Vitamin D created from sunlight is the same found through supplements.



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#5 linlin92

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Posted 23 October 2016 - 12:25 PM

That is so shocking because all through school we have been taught to stay away from the sun due to chances of getting skin cancer but only 15 min (not between 11am - 3pm though), and then wonder we kept getting flus and feeling the effects of SAD (seasonal affective disorder).

 

I have been supplementing with 1000iu D3 a day but will bump it up to 3000iu since I hardly get any sunlight these days (I tan extremely easily and tan is kind of looked down on in my culture haha)







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