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how will i feel after vitamin b12 injection Injections: Unlock Energy, Focus & Vitality Vitamin B12: All You Need
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No clinical claims or therapeutic uses are implied

J Clin Endocrinol Metab 75 : 11861191 Louard RJ et al

Three to four weeks People with good absorption may still experience benefits, though many improvements linked to deficiency settle down sooner

However, there are other groups of people who are more at risk of a lack of B12 in their body
