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Rodrguez Cetina Biefer H, et al
In cases of severe deficiency, a course of injections may be given over several weeks before transitioning to maintenance treatment
While there is no evidence that B12 can provide an energy boost in those with healthy levels of the vitamin, increased levels of B12 in those with a deficiency may improve symptoms of fatigue
Immune system boost Supports the immune system by promoting the function of white blood cells, helping the body fight infections and illnesses
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