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Energy production Functioning of the nervous and peripheral system Mood and cognitive functions Formation of the blood in the bone marrow Skin and mucous membranes Bones Glandular system Immune system Digestive system Fertility and pregnancy What Causes Vitamin B12 Deficiency
2 There is insufficient data to recommend other formulations of vitamin B 12 replacement (e.g., nasal, sublingual, subcutaneous)
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Data sourced from an NIH-published paper and adjusted based on inflation and regional differences in healthcare costs (source)
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![PDF] Oral semaglutide versus subcutaneous liraglutide and placebo in type 2 diabetes (PIONEER 4): a randomised, double-blind, phase 3a trial](https://figures.semanticscholar.org/e8287c4738beb6498b0b672a9e21849ac413152a/6-Table1-1.png)
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