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Presented for research literature review only Guo J et al
These amounts are considered safe because the human body, as a general matter, can safely store from 1,000 to 2,000 times the RDA, without negative consequence (anything more will generally be excreted in urine, per NCBI Bookshelf)
More Energy and Focus B vitamins and amino acids fuel your metabolism, helping your body convert food into energy more efficiently
A clinical trial from the UK measured cognitive or other neurological functions in response to B12 supplements in 191 asymptomatic, non-anemic older people with low B12 levels and considered moderately deficient
Hyperpigmentation inside the mouth due to low B12 levels may appear as bluish or dark discoloration
