26Feb/11Off
what is the best time during the day for ultra fiolt and vitamin D from the sun?
I don't have enough vitamin D in my body and the doctor said i should go out to the sun so i wanted the best timing for it
if it helps i live in Jeddah suadi arabia
February 26th, 2011 - 16:25
Best time of the day is between 10am and 4pm. In the early morning and in the evening the sun is reflecting off the Earth’s surface at an angle which prevents UVB from penetrating the ozone layer.
It is UVB that skin absorbs and converts into vitamin D.
My source for this information comes from the informative and entertaining lecture by Dr Michael Holick, who is a leading vitamin D researcher.