While an oral supplement may work for some people, individuals with these conditions cannot properly absorb vitamin B12 and can benefit from vitamin B12 injections
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Vitamin B12 Vitamin B12 serves many different biological purposes for our body, including the brain, heart, blood, and nervous system functions, but most importantly, it is essential for the fats metabolism
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If low levels of B 12 remain for a long time, the condition also can lead to irreversible damage to nerve cells, which can cause the following symptoms: numbness and tingling in the hands and feet difficulty walking muscle weakness irritability memory loss dementia depression psychosis
How Fast Does a B12 Shot Work