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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
For dietary deficiency where absorption is intact, oral cyanocobalamin is typically recommended in the UK
Methionine plays an important role in breaking down fats and may help reduce the accumulation of excess fat in the liver
Frequently Asked Questions It's used to correct B vitamin deficiencies, treat anemia, improve nerve health, and increase energyespecially when oral supplements aren't effective
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(PubMed) Bensky MJ, Ayalon-Dangur I, Ayalon-Dangur R, et al
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