Vitamin B12 plays essential roles in red blood cell formation, neurological function, and DNA synthesis
Normal acid levels are required for optimal B12 absorption
The realistic caveat is that long-term maintenance without pharmacologic or procedural support is difficult for most people which is the entire reason the rest of this list exists
Always draw bacteriostatic water first, inject slowly into lyophilized powder without creating foam, and allow 60 seconds for complete dissolution before drawing your dose
(PubMed) Almeida OP, McCaul K, Hankey GJ, Norman P, Jamrozik K, Flicker L
Common side effects may include: Mild injection-site reactions (redness, soreness, itching) Upset stomach or nausea Headache Mild anxiety or restlessness Rarely, allergic reactions If you experience difficulty breathing, severe dizziness, or hives, seek medical attention immediately