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A member asked:
If i stick my hand out of my window for 10 minutes a day is that enough vitamin d? i really don't want to go outside it's cold
A doctor has provided 1 answer
Vitamin D: Absolutely not. But sunlight in and of itself will not increase vitamin d levels. The sun has to be at a certain angle in the sky. There is a physics involved. In the winter, in the northern hemisphere it is best to get vitamin d as a supplement since the sun is not at a good angle for this vitamin d process.
Answered 1/30/2014
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