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When fatigue occurs, it typically resolves within the first few weeks
It contains a cyanide molecule, which is replaced by a methyl or adenosyl group in the body, allowing it to convert into an active form of B12
Common Symptoms of Low Vitamin B12 Vitamin B12 deficiency can develop gradually
Many people chalk it up to stress or lack of sleep when it could be a simple, treatable deficiency
The duration that a B12 injection remains effective in your body depends primarily on which formulation you receive
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