is b12 orally as good as injections Vitamin vs. Oral Supplements: Which Do You Actually Need? B12 Shot Guide: Benefits, Dosage
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doi: 10.2337/diabetes.49.2.143
Carmel R (2008) How I treat cobalamin (vitamin B12) deficiency

Product Outline Product name: Rozebalamin for Injection 25 mg Generic name: Mecobalamin Indication for use: Slowing progression of functional impairment in amyotrophic lateral sclerosis Dosage and administration: The usual dose of mecobalamin in adults is 50 mg a day, twice a week, injected intramuscularly

Pyo et al

Other research has examined dosing before exercise, based on the hypothesis that combining the peptide with physical activity might enhance fat oxidation
