Michelle Andrews, and I've helped hundreds of patients improve their energy and overall wellness through personalized care, including methyl b12 injections for those who need them
10.1089/acm.2006.12.881 Summary Keywords vitamin B12, efficacy, bioavailability, therapeutic approaches, meta-analysis, cobalamin Citation Mazur M, Ndokaj A, Salerno C, Vallone J, Ardan R, Bietolini S, Carrouel F, Wilk A, Sarig R, Ottolenghi L and Bourgeois D (2025) Efficacy of sublingual and oral vitamin B12 versus intramuscular administration: insights from a systematic review and meta-analysis
Still tight but more workable
5 bottles total
Panuszko, A., Szymczak, M., Duewska, J., Godlewska, J., Kuffel, A., & Brudziak, P
The most compelling pathway is through the gut-skin axis