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Vegans and Vegetarians : Individuals following plant-based diets may be at a higher risk of B12 deficiency and can benefit from B12 supplementation through injections

An increased burden of senescent cells in various tissues is a major factor contributing to aging and age-related diseases [3, 4]

B12 is also necessary for metabolic and hormonal function

Int J Mol Sci (2018) 19(6):1683

Epsilon toxin-producing Clostridium perfringens colonize the multiple sclerosis gut microbiome overcoming CNS immune privilege

You need a valid prescription from your GP following confirmed diagnosis of B12 deficiency through blood tests