Medical evaluation required
Most people get 1000 mcg (1 mg) of B12 once or twice a week
The vitamin also influences the growth of strong nails and shiny hair
Compounded formulations may have different stability, so verify with your pharmacy
In studies combining NNMT inhibition with progressive weighted wheel running (an intensive concurrent endurance and resistance exercise protocol), treated mice exhibited sustained enhanced muscle performance suggesting reduced need for recovery between exercise sessions
The most common side effect of B12 injections is irritation at the injection site, and injections are typically administered intramuscularly or subcutaneously. Less common side effects may include headache, nausea, diarrhea, itching, or a brief feeling of lightheadedness after the injection