how are b12 injections given to self-inject intramuscular vitamin - Overview B12 Injections for Energy: Benefits

In unclear cases, methylmalonic acid and homocysteine levels may be measured

Any soreness typically resolves within 24 hours

With your thumb and 3rd finger holding the middle of the syringe (similar to holding a pencil or pen but with different fingers) and your index finger on the plunger of the syringe, quickly insert the needle AT A 10-30 DEGREE ANGLE (this way it is impossible to go too deep) until it stops at the hub of the needle/syringe

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In those cases, the daily intake of B12 isnt able to keep up with the B12 the body is using

At 300 mcg, which is the standard current protocol, the effect size is likely more modest still