Intake of vitamin B12 in relation to vitamin B12 status in groups susceptible to deficiency: a systematic review.
Linnea BärebringChristel Lamberg-AllardtBirna ThorisdottirAlfons RamelFredrik SöderlundErik Kristoffer ArnesenBright I NwaruJutta DierkesAgneta ÅkessonPublished in: Food & nutrition research (2023)
Evidence is insufficient to assess if or which level of B12 intake is sufficient to maintain adequate status for all included populations. Population-based cohort studies and low-to-moderate dose interventions that address this question are highly warranted.