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They also play an important role in the production of brain messengers known as neurotransmitters

Still, animal products may also contain other substances that can interfere with vitamin B12 absorption, so vegetarians and vegans may be at risk of deficiency

How do Vitamin B12 Injections work

In practical terms, nerve cells may have a harder time meeting the demands of everyday movement, balance, and sensation

While we listed two options above, here are three additional supplements worth considering: NOW Foods Methyl B-12 lozenges: With the option to chew or let them dissolve in your mouth, these lozenges provide 41,667% of the DV for vitamin B12

Retrieved May 27, 2025, from Centers for Disease Control and Prevention