It has been shown to decrease homocysteine levels which reduces our risk of developing heart attacks, strokes or dementia
This causes the existing red blood cells in your bone marrow to become fragile and exceptionally large
For most healthy adults without a documented B12 deficiency, there is usually no medical benefit to receiving routine B12 injections , and they are unlikely to boost energy in the absence of deficiency
Think of weekly shots as focused, short-term work to fix a specific problem, and monthly shots as ongoing upkeep once you are stable
If you are B12 deficient, correcting that deficiency whether through injections or oral supplements can significantly improve energy levels
Without it, you may suffer from anemia, fatigue and weakness