Shut-in

37 items below

 - see also High Risk category listing has 63 items along with related searches

Shut-ins and those at high-risk of being vitamin D deficient really need to supplement with Vitamin D/UV/Sun

Astronauts, Submariners and Antarctic Scientists now supplement

Here are all of the Shut-in articles

23144 visitors, last modified 14 Nov, 2018,
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