How Injections Compare to Supplements Many people rely on oral supplements or dietary changes to boost vitamin B12
The combination of menopause and thyroid issues making it more difficult to keep weight off, as well as my own emotional eating habits, helped me realize I needed help from my doctor, and possibly a medication
[DOI] [PubMed] [Google Scholar] 33.Khoo J., Ho M., Kam S., et al
Last reviewed: May 20, 2026 Last updated: May 20, 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
These injections are used to supplement vitamin levels in the body and are administered into the muscle of the upper arm or buttock