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The optimal cycling pattern has not been determined through research, and individual responses may vary
Increased energy is often the first noticeable change, followed by gradual improvements in body composition over subsequent weeks
They are most often considered as a last resort for consistent supplementation if oral methods prove ineffective at staving off deficiency
The normal dose of B12 injection depends on how bad the deficiency is
However, the primary use of B12 injections around the world, and the main reason people need it so badly, is because of a disorder called pernicious anemia
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