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Here, What Our Experts Suggest: Who Should Opt for these Vitamin B12 Boosters

M., & Klingelhutz, A

Yet, the heterogeneity of existing assay characteristics and lack of comprehensive reference values, combined with previously inadequate calibration standards, together with cumbersome correction factors required to compare values between studies obtained with different assay kits, continue to affect the current unsatisfactory situation with IGF-1 testing

Vitamin B12 can be stored in small amounts by the body, predominantly in the liver

Higher-dose oral B12 (e.g., 1000 g daily) is sometimes used but should only be considered under clinical supervision with appropriate monitoring, particularly in cases of malabsorption where intramuscular treatment remains the first-line approach in UK practice

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