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Where B12 genuinely helps is in people whose levels are low or falling
This vitamin is essential for: Synthesis of neurotransmitters like serotonin and dopamine Maintenance of nerve cell integrity Formation of the protective myelin sheath around nerves Reduction of homocysteine (elevated levels are associated with cognitive decline) Studies have linked adequate B12 levels to better cognitive performance, particularly in memory, reasoning, and processing speed
You should take B12 shots if you suffer from B12 deficiency, especially if you are not able to absorb B12 through the stomach (pernicious anemia)
J Am Geriatr Soc
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