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Pittsburg, Kansas | Depends on who you talk to. Minimum 25 to prevent rickets. Minimal 40 for health. Recommend 60 in fall heading into winter so it does not drop below 40.
I have seen a study that showed benefits up to around 80 as I recall. Wife and I both tested basically 75 a few weeks ago which is right where I want to be. It doesn't seem to cause problems with some people testing above 100.
There is a thread over on Kitchen Table with links to a bunch of good resources.
https://talk.newagtalk.com/forums/thread-view.asp?tid=1028948&mid=93...
Edited by John Burns 11/25/2021 19:22
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Vitamin source
