are b12 injections better than sublingual Efficacy of different routes of vitamin supplementation for the treatment of patients with vitamin B12 deficiency: A systematic review and network meta-analysis Vitamin B12 Injections vs. Oral
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PMID: 25953825

[18] Some proponents claim B12 injections enhance metabolism and promote fat loss by increasing energy levels, thereby encouraging greater physical activity and caloric expenditure

12 (6), R60

Lipotropic injections, which contain amino acids and B vitamins, are safe when injected correctly and in the recommended dosage
