If your diet is solid, your gut works fine, and you have no symptoms, you're probably wasting your money
Check solution stability: storage instructions for dry powder do not automatically apply to a prepared solution
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
If you have vitamin B12 deficiency from pernicious anemia or as a result of bariatric surgery, then you must supplement with vitamin B12 regularly in order to prevent debilitating symptoms such as fatigue, depression, muscle pain, memory loss, and other signs of cognitive and neurological breakdown
Emideltide was the only peptide to be rejected