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PMC 3847746
If youre feeling sluggish or drained, an injection may quickly restore stamina and vitality
doi:10.1111/nure.12001
In addition, injections are fast-acting, so you may begin to notice their effects almost immediately
Signs of Vitamin B12 deficiency: Did you know Vitamin B12 deficiency can lead to side effects such as: fatigue, weakness, anemia and in severe cases can lead to strange sensations, numbness, tingling in the hands or feet, difficulty walking, and memory loss
B12 injections can help ensure that your brain receives the necessary nutrients to function optimally, potentially improving focus and memory retention
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