Youthful skin produces 4X as much vitamin D per minute in the sun as elderly skin
Youth rarely have diseases that actually consume vitamin D, such as:
MS, diabetes, obesity, colon cancer, bariatric surgery, kidney failure, liver failure, ...
CLICK HERE for vitamin D deficiency information
Youth tend to be outdoors more - example: summer vacation from school
Exceptions - probably need vitamin D if:
- sensitive skin,
- wearing burka
- indoors a lot due to a lot of video games or computer
- indoors due to the availablity of air conditioning
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Exceptions include: dark skin, pregnancy or fertility, Far from equator, and surgery or trauma