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Toggle Health Problems and D

Most exercise occurs in the evening (when there is little or no Vitamin D) – July 2017

Peak times for leisure and sports

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See also VitaminDWiki

People who get little noon-day sun must supplement with Vitamin D – systematic review June 2017
20 cent vitamin D pill similar to 2 hours sunbathing at 60 degree latitude – RCT Aug 2013
Why do gardeners live longer (vitamin D, etc.)
60 minutes of sunlight needed to decrease vitamin D deficiency in sunny climate – Dec 2012
Time in sun (in Spain) to get 4,000 IU of vitamin D: half hour in July , 2 hours in October – Sept 2016
Indoor bicycling and 2000 IU of vitamin D lowers heart rate by 6 percent – RCT Dec 2016

But, The Shadow Rule – you make more Vitamin D when you are taller than your shadow – 1992
shows that lots of vitamin D can be generated in the morning at 23 degrees latitude

Most exercise occurs in the evening (when there is little or no Vitamin D) – July 2017

7153 visitors, last modified 18 Mar, 2021,

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- The Greatest Public Health Mistake of the 20th Century (sunscreen block Vitamin D) - 2017 Widespread regular sunscreen application deemed not useful in the US – April 2018 Pregnant Women might find Global Warming Dangerous (lower vitamin D) – Nov 2017

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Noontime sun and D 290 Sports and Vitamin D 266

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