b12 intramuscular injection sites Reel by @edupointmed (@edupointmed) · July 21, 2026 How to inject B12 in

Therefore a B12 deficiency may lead to decreased serotonin production, which in turn may cause a depressed mood

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There are no naturally occurring bioactive forms of vitamin B 12 from plant sources

For best results: Start with low doses Increase slowly Monitor symptoms such as anxiety, irritability, or insomnia Working with a practitioner experienced in MTHFR is recommended

Vitamin B12 shots are typically prescribed for individuals with a diagnosed vitamin B12 deficiency

For injections given under the skin, the most common protocol is to give 250 micrograms once a week for an initial six weeks