why do i need vitamin b12 injections How Can Shots Help Me Feel Refreshed Do You Need a Prescription

Folate and vitamin B12 status in Latin America and the Caribbean: an update

Wang, D

Write the concentration (e.g., "10mg/mL"), the date, and optionally the mcg-per-unit value on the vial with a permanent marker

However, this should be approached cautiously and only after extended plateaus (6+ weeks of stable weight despite consistent protocol adherence)

If your body has trouble absorbing B12 from food or if you're not getting enough of it, these injections become especially helpful

Last reviewed: June 7, 2026 Last updated: June 7, 2026 Written by: Jay Hastings, CEO of PlexusDx Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations