First, vitamin B12 supplementation cannot stop hair loss and hair thinning from happening
B12 supplements are often used to treat or prevent deficiency, which can lead to symptoms such as fatigue, weakness, constipation, loss of appetite, and megaloblastic anemia
doi: 10.3389/fnut.2024.1493593 Received 09 September 2024 Accepted 18 October 2024 Published 08 November 2024 Volume 11 - 2024 Edited by Syeda Mahvish Zahra, Allama Iqbal Open University, Pakistan Reviewed by Farzana Saleh, Bangladesh University of Health Sciences, Bangladesh Nilfer zkan, Ordu University, Trkiye Updates Copyright 2024 Memon, Conti, Brilli, Tarantino, Chaudhry, Baloch, Shafiq, Mumtaz, Qaisar, Iqtadar, Abrar, Kanwal, Akhtar, Latif, Rabbani, Ujjan, Turroni and Khan
Unlike oral tablets, B complex B12 injections bypass the digestive system, allowing for better absorption and faster effects