Guest guest Posted January 8, 2012 Report Share Posted January 8, 2012 I read in two books on Vitamin D, which had tables for sunlight dosing, that at our latitude in Dallas, 40 minutes is about right for winter at high noon, on a clear sunny day. North of us, into OK, it starts to fade out and no Vitamin D will be made in the skin at all. I'm sure there must be tables on the Internet somewhere to see how long to stay out at different times of the day in different seasons. I remember one book used UV level as part of the formula. You can get that on the Internet for your location, predicted for that day at noon. I had no idea that age, weight, and medications can affect the making if Vit D, so one should read up on it before " taking the sunshine. " Of course, family history or personal history of any skin cancer should be taken into consideration. I did know that skin tone affects the making of Vitamin D, and insufficiency is found more predominantly in African Americans, who need to stay in the sun longer to get equivalent amounts. Always research this and know your appropriate " prescription strength " before dosing! :-) I think a very good site is the Vitamin D Council's website which was started by Dr. Cannell. http://www.vitamindcouncil.org/ There are many interesting articles on research on the site and noted in their monthly e-newsletter. I'm amazed at what I've read about a possible link between a mother's insufficiency of Vit D levels and autism. And many articles about research on possible benefits of Vit D against some cancers, it's purported ability to boost the immune system. I've been saddened to learn of the rise in the incidence of childhood rickets. Children are being slathered with sunblock and kept out of the sun so much that we are going the wrong way now, and they don't get enough sun. Dr. Cannell writes of parents being charged for child abuse, and then they find out that it's a lack of VItamin D that lead to bone loss and fractures or breakage. He's trying to get the medical community to step up to the plate on this. It takes forever to turn things around. Although I take supplements and have a good blood level finally, there is nothing like spending time outside in the sun, but knowing how long to stay and then get in the shade or cover up or go inside. I'm sure the " real deal " has special benefits you can't find in a pill. All JMHO. Sara > > > > > > And I have been laying in the sun each day for 20 to 40 minutes, and the fog > in my head goes away with that. > > > > At our latitude, you are not able to get any appreciable vitamin d during > this time of the year, although this nice and sunny weather has sure been > nice. > > > > Susie > Quote Link to comment Share on other sites More sharing options...
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