Vitamin B12 is required for the body to function at an optimal level. A vitamin B12 deficiency can leave you vulnerable to other more serious health ailments. Moreover, a B12 deficiency can be mistaken for a more serious neurological. B12 is needed for several important bodily processes such as the production of certain hormones, metabolism of nutrients, production of red blood cells, the absorption of iron, proper functioning of the nervous and cognitive system.
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