I just posted today that there is no "ideal" level. It can vary from person to person, depending on their needs.
http://neurotalk.psychcentral.com/post698522-70.html
But your tests are not glaringly low. If you decide to supplement with it, there is no real risk of any harmful effects.
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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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