is taking vitamin b12 nasally and by injection dangerous B12: Overdose Side Effects Vitamin B12 Shots: Uses, Intake

Typically, a few drops of the serum should be gently massaged into the clean, dry scalp once or twice daily, focusing on areas where hair thinning is most noticeable

Vitamin B12 shots are given to prevent or treat vitamin B12 deficiency

doi: 10.3389/fnut.2025.1701661 Received 08 September 2025 Revised 10 November 2025 Accepted 04 December 2025 Published 05 January 2026 Volume 12 - 2025 Edited by Emanuele Micaglio, IRCCS San Donato Polyclinic, Italy Reviewed by Runzhe Xu, University of Texas Southwestern Medical Center, United States Husain Alkhaldy, King Khalid University, Saudi Arabia Updates Copyright 2026 de Carvalho, Akamine, Di Pietro, Frana, Oliveira and Lopes

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Your heart may beat erratically or stop if dialysis removes too much or too little potassium