It is not a weight-loss drug on its own, and Dr
An intramuscular injection delivers the B12 directly into your muscle, allowing it to be absorbed quickly into your bloodstream
B12 supplementation is very safe and side effects are very rare, but supplementation is often required for life
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
It has many functions and benefits, but its predominantly known for its role in helping your body produce red blood cells
Step 1: Draw the Correct Dose Getting the right amount of B12 in the syringe is your first step