The effect typically diminishes after the first few days as the body adjusts
The $50 lost peptide is cheaper than treating an infection
However, "unlike most other vitamins, B12 is stored in substantial amounts, mainly in the liver, until it is needed by the body," according to Merck Manuals Consumer Version
A Changing Landscape for B12 Testing Pernicious Anaemia Society The application and interpretation of laboratory biomarkers for the evaluation of vitamin B12 status Dominic J Harrington, Emma Stevenson, Agata Sobczyska-Malefora, 2025 According to the UK NSC, while B12 deficiency can have serious consequences, it might not be prevalent enough in the general pregnant population to warrant universal screening
It appears to coordinate multiple repair pathways simultaneously, which may explain why it shows benefits across so many different tissue types
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