Question about Vitamin D

[Nickelless]

OK, this just ran through my brain while I'm still sitting in an office to earn my preps money: Is it possible to get Vitamin D from sunlight through a window that isn't tinted? I've been working second or third shift for so long that I have trouble remembering what sunlight looks like, but since I've currently been stationed near a window with a decent amount of sunlight, I just wondered about Vitamin D. I drink a lot of milk anyway so I get Vitamin D that way, but just wondered about sunlight at my desk.

[Merlin]

Glass is cutting out something all right. My photogrey prescription glasses, which darken nicely when I'm out in the sun, do not darken at all when I'm driving my car.

[Rusty Shackelford]

Andy, I am sure you know this but you post was worded in a way that made me think that you might be confused about Vitamin D and sunlight. Sunlight does not have Vit D in it. Instead it is the UVA and UVB rays found in sunlight that stimulates the body to produce the Vit D.

http://generalmedicine.suite101.com/article.cfm/sunlight_and_vitamin_d_deficiency

Just trying to clear up an possible misinformation you might have.

[Green Mountain Boy]

This is not a direct answer to your question (I don't have one), but it's some anecdotal evidence of the benefits of Vitamin D3. I started taking 5,000 I.U. last fall for the first time in my life and experienced a significant boost to my immune system. I only had one minor cold this past fall/winter and no flu, etc. Usually I have gotten multiple bad colds during cold/flu season, but not this year!

It's definitely worth the money you'll pay for one bottle of D3 pills.

[Brother Shamus]

glass blocks the majority of UVB which is the wavelength that is responsible for vitamin d production.

[Brother Shamus]

from http://www.westonaprice.org/The-Miracle-of-Vitamin-D.html


The ultraviolet wavelength that stimulates our bodies to produce vitamin D is UV-B. It is sometimes called the "burning ray" because it is the primary cause of sunburn (erythema). However, UV-B initiates beneficial responses, stimulating the production of vitamin D that the body uses in many important processes. Although UV-B causes sunburn, it also causes special skin cells called melanocytes to produce melanin, which is protective. UV-B also stimulates the production of Melanocyte Stimulating Hormone (MSH), an important hormone in weight loss and energy production.8

The reason it is difficult to get adequate vitamin D from sunlight is that while UV-A is present throughout the day, the amount of UV-B present has to do with the angle of the sun's rays. Thus, UV-B is present only during midday hours at higher latitudes, and only with significant intensity in temperate or tropical latitudes. Only 5 percent of the UV-B light range goes through glass and it does not penetrate clouds, smog or fog.

[KumbayaMan]

This is not a direct answer to your question (I don't have one), but it's some anecdotal evidence of the benefits of Vitamin D3. I started taking 5,000 I.U. last fall for the first time in my life and experienced a significant boost to my immune system. I only had one minor cold this past fall/winter and no flu, etc. Usually I have gotten multiple bad colds during cold/flu season, but not this year!

It's definitely worth the money you'll pay for one bottle of D3 pills.

What he said... D has worked well for me this winter I've been taking btwn 6 and 10k / day and outside of one nasty sinus infection I'm still getting rid of All's been good.... Don't mean to hijack your thread but D is good

[mamboni]

Glass generally blocks the UV content in light that catalyzes vitamin D production in the skin. Also, sunlight is not a reproducable source of D because it takes hours for the vitamin to be absorbed in the blood stream. Most people wash it off before absorption. Most reliable way to get the vitamin is oral supplementation with D3. I take 5000 IU per day. I've noticed a general more even mood and I'm sleeping better than I have in years. If you miss a day or two you can double or triple up because D3 is a fat-soluble vitamin. At 5,000 IU you'll boost your immunity against viruses and cancer, and improve mineral metabolism with no danger of hypervitaminosis. If you are someone who gets a lot of sun (landscaper, roofer etc.) you probably need only 1-2000 IU per day.

[Thornapple]

Also note that vit D enriched milk was intended only as a supplement. It was expected that you'd still get most of your vit D from sunlight. The reason a lot of folks have vit D deficiency today is that everyone stays inside where its AC/heated and watches TV/computer.

[agmom]

Last year I was diagnosed with melanoma, which I found quite ironic since I avoid the sun like the plague. (I'm not being virtuous, I just don't like it!) I'm not sure the doctor believed me, and when he tested my levels of D he found me extremely deficient. He's had me supplement with 2000 mg of D3 daily. (After reading Mamboni's post - I may up that a little.)

After reading about how common deficiency in Vit D is, even amongst children - I decided to give my children 1000 mg every other day. (I started last year when I decided against giving them the H1N1 vaccine.) My children found it nauseating, especially on an empty stomach - and 2 of them actually vomited shortly after taking it. I also must take it after eating in order not to become sick. I'm just curious if anyone else has found this to be an issue?

[rurounikitsune]

Most vitamins and medicines are designed to be taken with food. I wouldn't worry that it upsets an empty stomach.

I have also heard that fat soluble vitamins in particular are best taken with a food that includes fat.


Last year I was diagnosed with melanoma, which I found quite ironic since I avoid the sun like the plague. (I'm not being virtuous, I just don't like it!) I'm not sure the doctor believed me, and when he tested my levels of D he found me extremely deficient. He's had me supplement with 2000 mg of D3 daily. (After reading Mamboni's post - I may up that a little.)

After reading about how common deficiency in Vit D is, even amongst children - I decided to give my children 1000 mg every other day. (I started last year when I decided against giving them the H1N1 vaccine.) My children found it nauseating, especially on an empty stomach - and 2 of them actually vomited shortly after taking it. I also must take it after eating in order not to become sick. I'm just curious if anyone else has found this to be an issue?

[Unclad Lad]

Is there a glass made that will allow UV-A and UV-B to pass through?

[mamboni]

Is there a glass made that will allow UV-A and UV-B to pass through?

You need panes made of pure amorphous quartz, the material used to make spectroscope-grade cuvettes that pass the UV light spectrum. I doubt these are made as there would be no commerical market (except perhaps greenhouses). I've heard of greenhouses built from panels of polycarbonate or fiberglass in lieu of glass because the former pass more UV.

[Rusty Shackelford]

Also note that vit D enriched milk was intended only as a supplement. It was expected that you'd still get most of your vit D from sunlight. The reason a lot of folks have vit D deficiency today is that everyone stays inside where its AC/heated and watches TV/computer.

Now the guys on the "other site" will use this tid bit of information to say that being on GIM2 is bad for your health and will kill you.

[SB2]

Hi everybody! New forum huh???

I've been taking 1000 units D3 per day and 4 minutes per week in a tanning booth this winter. I have had no colds or any flu this winter.

As for getting UVb through a glass window a high percentage of it is blocked

sb

[theberkeyguy]

Naturalnews.com has talked a lot about Vitamin D lately. I would recommend looking at their previous article also.

theberkeyguy

[AMforPM]

We started taking D3 when we found out how deficient most people are. Here is a longish interview on it.


http://www.youtube.com/watch?v=HH1rB-Ya2UQ&feature=PlayList&p=8683833EFC3B22E6&playnext_from=PL&playnext=1&index=42

[AMforPM]

A shorter vid on vitamin D


http://www.youtube.com/watch?v=--NqqB2nhBE&feature=PlayList&p=8683833EFC3B22E6&playnext_from=PL&index=43&playnext=2

[TnAndy]

Andy, I am sure you know this but you post was worded in a way that made me think that you might be confused about Vitamin D and sunlight. Sunlight does not have Vit D in it. Instead it is the UVA and UVB rays found in sunlight that stimulates the body to produce the Vit D.

http://generalmedicine.suite101.com/article.cfm/sunlight_and_vitamin_d_deficiency


Just trying to clear up an possible misinformation you might have.

Yeah, I think I did know that from somewhere way back, but had forgotten the exact process....thanks!