Anything below 400 is suspect. Anything below 300 can have substantial neuro symptoms. Anything below 200 is scary!
Anything higher is desirable. There is no absolute high...only where the machines can test to... which I have seen reported on a few sites at 2000. That is in US pg/ml concentrations.
I think people with substantial neuro symptoms should aim for 1000 at least.
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All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
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Weezie looking at petunias 8.25.2017
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