Gerontology. 2011;57(4):350-3. Epub 2010 Dec 22.
Institute for Biochemical Pharmacology, University of Innsbruck, Innsbruck, Austria. Hartmut.Glossmann at i-med.ac.at
There is mounting concern about vitamin D insufficiency, especially in the ageing population. Increases in indoor lifestyle, obesity, car travel, clothing habits, the use of photo-protective makeup, and campaigns driven by dermatologists, governments, and the cosmetic industry to avoid or protect against the sun as much as possible are contributing to this trend.
In a recent article in Gerontology, Barysch et al.  recommend that the ageing population avoid any 'intentional' UV radiation as well as 'minimize sun exposure' based on known dangers of developing skin cancer. They warn that 'studies with vitamin D supplements reported increased risks of prostate and esophagus cancer as well as atopy in childhood' and concluded that 'adequate levels of vitamin D are essential for the elderly', but do not suggest which level is optimal. I will argue that the ageing population should keep their serum 25-(OH)-vitamin D(3) (25-(OH)-D) levels in the 75-100 nmol/l range. An oral cholecalciferol intake of ?2,000 IU/day is recommended as a supplement throughout the year for those who cannot enjoy the sun in summer or only during 'vitamin D winter' for the others.
Copyright © 2010 S. Karger AG, Basel.
- Intense (with sunburns) and intermittent (vacation or weekend) UVR exposure, especially in early childhood, predispose to MM
- The MM risk of the trunk and limbs increases with a higher socioeconomic status (more recreational, intermittent sun exposure) but is surprisingly largely uninfluenced by latitude and ambient UV-B radiation 
- . . the incidence has been rising continuously since as early as 1940, but this increase has mainly occurred in indoor but not outdoor workers. . .
- . .higher 25-(OH)-D levels at the time of diagnosis are associated with both thinner tumors and better survival . . .
- ’Nitric oxide production in the skin is increased at the same time by UV-A, which lowers the system blood pressure, indicating that there are many activities of natural sunlight extending beyond vitamin D
- Are your chances of dying – compared to a population without BCC or SCC – better or worse?
The answer is surprising and unexpected:
you are going to live longer, by ~9%, if you have been diagnosed with a BCC based on a 10–year mortality rate ratio (MRR = 0.91)
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(all of the following are on the VitaminDWiki, but do not have time to make all of the hyperlinks)
- Seniors need 3X as much time in the sun to get same amount of vitamin D
- Need about 2X more if overweight
- Various anti-oxidants reduce the chance of sunburns
- Maximize the amount of vitamin D while minimizing the chance of sunburn
by spending a small amount of time out in the hot sun with a minimum of clothing.
- Perhaps having enough vitamin D reduces chance of sunburning
- All items in Noontime Sun _
- Overview Suntans melanoma and vitamin D
- Overview Seniors and Vitamin D
- Search for Glossman on VitaminDWiki 32 items as of May 2013
- Seniors, like everyone else, need vitamin D and should avoid sunburns – 2011
- The statin Crestor dramatically increases levels of vitamin D in the blood – Jan 2012
- Nice Overview of Vitamin D in 64 slides - Glossmann 2013
- Pharmacology of vitamin D - April 2011 a subsequent paper by Dr. Glossmann
- No – 10 minutes per day of sun-UVB is NOT enough which has the following graphic