Why You Need Heavenly Sunshine for Vitamin D

first_imgRickets is on the rise again, along with other diseases caused by vitamin D deficiency, reports Erik Stokstad in the Dec. 12 issue of Science1.  Most vitamins we take in the mouth.  Why do we need to stand outside for this one?  He explains:Vitamin D is a steroid hormone that helps regulate calcium, an element vital not just for strong bones and teeth, but for nerves and the heart as well.  It’s found in very few foods except for salmon and other fatty fish.  Most vitamin D is made when ultraviolet B (UVB) light hits a precursor molecule in the skin.  As 25(OH)D, it then travels through the blood to the kidneys, which turn it into an active metabolite that regulates calcium levels.  Other tissues make this metabolite locally to maintain cell health.Of course, too much sun can lead to sunburn and increased risk of skin cancer, but “Evidence is coming in that higher levels may be desirable,” he says.  Too little sun, as well as too much, can lead to cancer.  Shortage of vitamin D can even lead to diabetes.  Infants and the elderly seem to be especially at risk for vitamin D deficiency.  More studies are needed regarding proper dosage, but for what we know now, Dr. Stokstad prescribes: “While researchers work out the details, most healthy people can probably get enough vitamin D by simply soaking up midday direct sunlight on their face and hands for 10 to 15 minutes three times a week, or longer if they’re darker skinned.”1Erik Stokstad, “Nutrition: The Vitamin D Deficit,” Science Volume 302, Number 5652, Issue of 12 Dec 2003, pp. 1886-1888.Isn’t it interesting that a precursor protein is just sitting there in the skin waiting for the right wavelength of light from the right kind of star.  Almost makes you think God wanted us to get out of the house once in awhile and explore His awesome creations.  Visit our Photo Gallery for some sources of heavenly sunshine.(Visited 11 times, 1 visits today)FacebookTwitterPinterestSave分享0last_img

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