HealthBoards - View Single Post - Vitamin D Deficiency

Le98 · 07-14-2009, 07:51 AM

Hi Nannie8,

In addition to what others have posted, here are some other factors that can affect Vitamin D status. They come from a paper by Michael Holick, MD, published in the American Journal of Clinical Nutrition in 2004:

-Age: A 70-year-old makes only 1/4 the amount of vitamin D that a 20-year-old does when exposed to the same amount of sunlight

-Obesity: Vitamin D is fat-soluble, and body fat can serve as an irreversible sink for body fat, putting obese people at risk for Vitamin D deficiency

-Sunscreen use: sunscreens block the lion's share of UVB radiation, which is required for the synthesis of Vitamin D in the skin

-Skin pigmentation - dark skin acts as a natural sunscreen

* link to commercial website removed by hb-mod, moderator *

I hope this helps!

07-14-2009, 07:51 AM	#5
Le98 Newbie (female) Join Date: Jul 2009 Location: MD Posts: 4	Re: Vitamin D Deficiency - Need information Hi Nannie8, In addition to what others have posted, here are some other factors that can affect Vitamin D status. They come from a paper by Michael Holick, MD, published in the American Journal of Clinical Nutrition in 2004: -Age: A 70-year-old makes only 1/4 the amount of vitamin D that a 20-year-old does when exposed to the same amount of sunlight -Obesity: Vitamin D is fat-soluble, and body fat can serve as an irreversible sink for body fat, putting obese people at risk for Vitamin D deficiency -Sunscreen use: sunscreens block the lion's share of UVB radiation, which is required for the synthesis of Vitamin D in the skin -Skin pigmentation - dark skin acts as a natural sunscreen * link to commercial website removed by hb-mod, moderator * I hope this helps! Last edited by hb-mod; 07-14-2009 at 08:32 AM. Reason: Please don't post links and/or instructions regarding commercial websites as per Posting Policy. Thanks.