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Last reviewed: June 6, 2026 Last updated: June 6, 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
Other signs Dr Thornber notes of someone taking too much vitamin B12 are: Dizziness headache Anxiety Rash Joint and muscle pain Nausea Vomiting Diarrhoea How much vitamin B12 do you need
Approximately 28 days when stored at 36 to 46 degrees F (2 to 8 degrees C) in a refrigerator and prepared with bacteriostatic water
It is not scheduled under the Controlled Substances Act
If you have had low B12 levels, some of the benefits of the shots can include an increase in cognitive functioning, more energy, and an overall improvement in a sense of physical and mental well-being
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