If you are considering starting B12 supplements, particularly at high doses, discuss this with your GP or a registered pharmacist, especially if you have existing medical conditions or take other medications
If it is cloudy or contains particles, do not use the pen
Tabata, K
doi: 10.3389/fendo.2024.1528457 Received 14 November 2024 Accepted 30 December 2024 Published 21 January 2025 Volume 15 - 2024 Edited by Claire Joanne Stocker, Aston University, United Kingdom Reviewed by Wael Sidrak, Abou Seifein Diabetes & Endocrine Center, Egypt Frederic Illouz, CHU Angers, France Christine Trapp, Connecticut Childrens Medical Center, United States Updates Copyright 2025 Koceva, Mleku Kozamernik, Jane, Herman, Ferjan and Jensterle