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For gut health specifically, oral is the preferred route for direct tissue contact
Later, the central and peripheral nervous system are also disturbed, because vitamin B12 is jointly responsible for the formation of the myelin sheaths of the nerve cells
As a cofactor, it participates in many biochemical processes related to the nervous system, supporting neurotransmitters like dopamine and serotonin
Living and healthcare costs in Manhattan are naturally higher than in smaller cities, which influences overall pricing
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