b12 deficiency injection dose Optimal Vitamin Dosage and Treating Cobalamin (vitamin B12) and Folate
Description
However, B12 injections will likely be most beneficial in improving performance if you correct a deficiency

The goal isn't to megadose it's to restore and maintain levels in the high-normal range where your cells have what they need

For a fuller look at who genuinely benefits, our guide on B12 injections is a good next read

Literature and video were very helpful
You are a strict vegan or vegetarian and need to replenish depleted stores quickly

For a detailed overview of injection options and safety, see the best injection for weight loss