Sikhs Prone to Vitamin D Deficiency

I say "yuk" to all including vitamin pills. Gag!
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Hair, why cut it? - SikhiWiki, free Sikh encyclopedia.

If Sikhs are becoming Vitamin D defficient then either the above is BS or we just need to take our turbans off outside, every now and then.

synthesis of vitamin d in body (for chem buffs)

Vitamin D (Cholecalciferol, Calcitriol)


Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/health-and-nutrition/25152-sikhs-prone-to-vitamin-d-deficiency.html
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/showthread.php?t=25152
its important that we control intake...most fortified foods provide vitamin D supplement...8-15 minutes of sparse/scattered exposure to sunlight, to about 1.5-2 square feet of skin, is usually enough (note sunscreens prevent synthesis of vitamin D, especially the ones with spf > 8)

over-supplementing vitamin D can have TOXIC EFFECTS!!!! BEWARE!
(vitamin-D is used as a rodenticide)

Sinister Ji, I didn't find anything on the net about hair aiding in any sort of Vitamin D synthesis, besides on Sikh websites.
Do you know anything about that?

Folic acid?
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/showthread.php?t=25152

Peace
Satyaban

Folic acid Yes, and also pantothenic acid. Good for your hair. The B complex - important for tissues. Sinister wasn't saying that hair aids in Vitamin D synthesis. He was saying you can take your turban off a few minutes a day and get some sunlight on your scalp. The sun exposure helps in the synthesis of Vitamin D.

Hi bhagatji

No, sorry I have never heard of hair fibers themselves directly or indirectly aiding in the synthesis of Vitamin D.

The Hair fibers themselves are actually considered a part of Integumentary System (the sort of lifeless end of the integumentary system) so I can understand where the confusion could arise. Hair follicles have a large amount of Vitamin D RECEPTORS (receptors are not involved in synthesis)…some studies were shown that administering drugs structured similar to vitamin D increased hair GROWTH in mice. (not the other way around)

Pre-Vitamin D3 is photochemically synthesized from 7-dehydrocholesterol (this is a derivative of cholesterol). 7-dehydrocholesterol is irradiated by light rays at around 250 nm (ultra-violet rays) and undergoes a 6 chain electrocyclic reaction to form pre-vitamin D3. This reaction takes place in two epidermal layers of the skin … stratum spinosum and basal (which is the area most of the 7-dehydrocholesterol is stored in the body)

Pre-vitamin D3 enters the blood stream and is then further processed in the liver and kidneys before it becomes physiologically active vitamin D.

Hair fibers don’t even enter the scenario even hair follicles are actually invaginations into the skin … so I would suspect that even h-follicular cells would not play a role in Vitamin D synthesis.

It's either confusion or lack of knowledge, on their part.

Friends:
I think Narayanjot ji has clarified this and I thank Sinister for his additional input.
It is my understanding that hair is dead and does no more than provide cover and help regulate body temperature. I was recently diagnosed to be deficient in vitamins b and d for which I was given a shot of "b" and a script for folic acid. To make matters worse I was also deficient in iron and now take iron pills. The bottom line is I feel much better now.

Peace
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/showthread.php?t=25152
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/showthread.php?t=25152
Satyaban

Satyaban ji

It is wonderful that you were able to restore your systems to normal.