People vary in their response. Some get quick results, and some it takes weeks/months. I guess it depends on how long the deficiency was going on. The longer the damage the longer the results.
There are no studies showing taking high B12 is harmful in any way. Just make sure he takes on an empty stomach even if it is sublingual, because one does swallow the saliva containing it.
You can check in here anytime with questions and/or progress reports.
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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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