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N-acetyl-cysteine prevents age-related hearing loss and the progressive loss of inner hair cells in -glutamyl transferase 1 deficient mice

Another advantage is accessibility

[1] The NHS advises that taking up to 2mg (2000 micrograms) per day of vitamin B12 supplements is unlikely to cause harm

It takes years to develop the full-blown symptoms of pernicious anemia

Preclinical research indicates it remains structurally intact in acidic and enzymatic environments, making it a reliable subject for degradation and interaction studies

Investigations often focus on its potential influence on circadian rhythms, adaptive responses to stress, and broader models of physiological balance in animal and cell-based models