Author Topic: Vitamin D  (Read 105408 times)

Offline samjohn

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Re: Vitamin D
« Reply #60 on: June 22, 2010, 07:31:26 PM »
The only thing I'm concerned with is the wrinkling of my skin, which seems like it would result with any amount of UV exposure.

I wonder how much sun actually ages the skin, and how much it merely causes the skin to look older due to the antiproliferant effect of the vitamin D.

Vit D inhibits cell growth?

Offline Mister Misanthrope

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Re: Vitamin D
« Reply #61 on: June 22, 2010, 08:40:50 PM »
lol
« Last Edit: April 30, 2011, 12:40:38 AM by Mister Misanthrope »


Offline samjohn

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Re: Vitamin D
« Reply #62 on: June 22, 2010, 08:57:09 PM »
My father works in the sun. His legs never get sun, his arms and face get sun all day. At 61, the skin on his legs when he wears shorts looks like it's 20 years old, whereas his face and arms show his age.

The commonly quoted stat is that the sun causes 80%-90% of skin aging. No idea how accurate that number may be, but it is oft repeated.

Offline Warren Dew

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Re: Vitamin D
« Reply #63 on: June 22, 2010, 08:57:55 PM »
Vit D inhibits cell growth?

It evidently inhibits cell division.  That may be related to why it seems to inhibit cancer.

Offline Mister Misanthrope

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Re: Vitamin D
« Reply #64 on: June 22, 2010, 09:14:14 PM »
lol
« Last Edit: April 30, 2011, 12:40:30 AM by Mister Misanthrope »


Offline samjohn

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Re: Vitamin D
« Reply #65 on: June 22, 2010, 11:09:16 PM »
Vit D inhibits cell growth?

It evidently inhibits cell division.  That may be related to why it seems to inhibit cancer.

Yup reading up on it now, it is involved in an incredible amount of cell functions.

Offline Chris

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Re: Vitamin D
« Reply #66 on: June 30, 2010, 07:25:30 AM »
I've just received my order for Vitamin D3 10,000iu from iHerb. Excellent price and fast shipping, looking forward to using them!

Even though I'm only on my third week Paleo, hopefully the extra vitamin D will help fight off my damn hayfever! It's better with the diet change, but still plays up every other day or so.

Offline KetoWarrior

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Re: Vitamin D
« Reply #67 on: July 03, 2010, 07:27:39 PM »
http://www.vitamindcouncil.org/vitaminDToxicity.shtml

This article references work by a nutritional science professor:

"human toxicity probably begins to occur after chronic daily consumption of approximately 40,000 IU/day"

I take D3 5000 iu per day. I have psoriasis and reactive arthritis. It has hugely helped the latter ;D and definitely leverages sunlight in treatment of the former.

However, it's not cheap. I pay about 18 / $28 for Nature's Plus 60 softgels / 2 month supply. But it's quality stuff, and Nature's Plus publishes an independent lab test showing that their pills contain the amount of D3 they say they do.

Sometimes I will take 2 softgels a day if I'm more symptomatic or getting less sun exposure.

Surely palaeolithic societies would have had much more UV exposure comparative to us. Therefore it seems reasonable that people with indoor occupations or lifestyles should all be taking D3.

Mike

Offline Eric

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Re: Vitamin D
« Reply #68 on: July 10, 2010, 05:07:30 AM »
I've just received my order for Vitamin D3 10,000iu from iHerb. Excellent price and fast shipping, looking forward to using them!

Even though I'm only on my third week Paleo, hopefully the extra vitamin D will help fight off my damn hayfever! It's better with the diet change, but still plays up every other day or so.

Glad you're enjoying them, I take the same ones except the 5,000iu variety.  Now you know what I'm talking about when I tout their great prices, fast shipping, and top quality (important!)

Offline primalocity

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Re: Vitamin D
« Reply #69 on: September 04, 2010, 08:44:08 AM »
After some research I determined that 5000 IU was a good amount and thats what I take - I paid less then $15 US for a 90 day supply.  I also try to make sure that i eat something with fat as vitamin d is a fat soluble vitamin and needs the fat to do any good in your body

Offline Chelles

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Re: Vitamin D
« Reply #70 on: September 07, 2010, 07:12:04 PM »
Have many of you had your levels checked? Mine was 23.2 L ng/mL, so my MD ordered a 50,000 once-a-week dose until they're normal. I've taken them 2x and have noticed no health benefits yet.

Offline Warren Dew

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Re: Vitamin D
« Reply #71 on: September 07, 2010, 07:30:59 PM »
The main known benefits of vitamin D are bone health and probably cancer prevention.  Those are long term things, so you might not notice any difference for years.

Offline Chelles

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Re: Vitamin D
« Reply #72 on: September 07, 2010, 07:34:24 PM »
That's what I figured. I was hoping it could help with weight loss, but I'll take the cancer prevention any day.

Offline sparrow

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Re: Vitamin D
« Reply #73 on: September 09, 2010, 11:09:28 AM »
It can also help a lot with fatigue, seasonal affective disorder, and depression, if you were low on it.  My husband feels worlds better since he started 5,000 IU once a day.  I haven't noticed a gigantic difference, but I definitely have more energy and fewer mood swings.

Offline Warren Dew

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Re: Vitamin D
« Reply #74 on: September 28, 2010, 08:58:01 PM »
More on the cancer prevention at this link:

http://www.health.harvard.edu/newsweek/time-for-more-vitamin-d.htm

The article cites a study showing that postmenopausal women who took 1100 iu of vitamin D per day had a 77% lower chance of getting nonskin cancers.  It also cites another study that found no protective effect against colon cancer at 400 iu per day.

Unfortunately I could find no links to the original studies.  If reported accurately, they would seem to indicate that one can cut one's chances of getting most cancers in a quarter by taking 1100 iu per day.  That's a big reduction!  Also, 400 iu per day is not enough.