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However vitamin B12 deficiency is not only associated with pernicious anaemia but is also linked with neurological conditions

They are not recommended in pregnancy or breastfeeding, for those under 18, or with severe untreated medical conditions

Stay on top of your B12 levels and explore ways to maintain overall well-being

Symptoms of excessive intake are rare since your body will excrete any extra through your urine, adds Taylor

doi: 10.3389/fcell.2025.1671152 Received 22 July 2025 Revised 08 October 2025 Accepted 20 October 2025 Published 01 December 2025 Volume 13 - 2025 Edited by Nimanthi Jayathilaka, University of Kelaniya, Sri Lanka Reviewed by Theodoros Androutsakos, National and Kapodistrian University of Athens, Greece Arturo Raya-Sandino, University of Michigan, United States Updates Copyright 2025 Ferris, Subitoni Antonio and Al-Sadi