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22 May 2026 6 min Why do I feel worse after my B12 injection
Contributes to anti-ageing, longevity, and sustained energy
No studies have shown that extra B12 offers any benefits in these areas
"People who really believe that that's the power of placebo." B12 has me like —@katyperry As a geriatrician at Mount Sinai Hospital in Toronto, Sinha said he commonly tests for B12 levels in patients "when we're assessing a person for dementia or a person with balance issues." Otherwise he said it's ineffective to take B12 supplements to prevent deficiency and there are even potential risks of over-doing it
Make sure to inform your healthcare provider about any underlying medical conditions you have
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