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oral vs injected b12 Efficacy of different routes of vitamin supplementation for the treatment of patients with vitamin B12 deficiency: A systematic review and network meta-analysis bpc-157 oral vs injection studies
Description
Lancet 349 : 397397

For observational studies reporting serum vitamin B12 levels, the certainty of evidence was upgraded from low to moderate due to the large and consistent magnitude of effect across studies, despite heterogeneity

If left untreated, the deficiency can cause severe neurologic problems and blood diseases

These are in addition to diabetes, autoimmune diseases, vascular diseases (such as Atherosclerosis or Peripheral Artery Disease), and vitamin deficiencies
