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The best sites for B12 injections

Can I administer B12 injections myself

B12 supports normal energy metabolism and red blood cell production, so correcting a genuine deficiency can help you feel and perform like yourself again, but shots are not a proven performance enhancer for people who are not deficient

While some places might market it for general energy boosts or weight loss, if your B12 levels are already normal, there's little scientific proof that these injections will give you a significant energy rush or help you lose weight

In some patients, especially those with thicker subcutaneous fat, injections given in this area may also fail to reach the muscle properly, which can affect medication absorption

J R Soc Med