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Last reviewed: June 30, 2026 Last updated: June 30, 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
Side effects are generally mild and may include slight redness or soreness at the injection site
Vitamin B12 is essential during pregnancy, but you should only take Cyanocobalamin supplements or injections under the guidance of a healthcare provider
How far do you stick a needle in for a B12 shot
Some people report slight increases in energy or subtle changes in appetite during this phase
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