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The most common and effective way to treat or prevent a vitamin B12 deficiency is with shots prescribed by a doctor and injected into the muscle
Another tip is to incorporate stress-reducing activities into your routine
Severe deficiencies, especially those with neurological symptoms (numbness, tingling, memory issues), often require a more intensive initial treatment plan to rapidly restore healthy B12 levels and prevent lasting nerve damage
Convenient once-weekly dosing improves adherence compared to daily regimens [1]
This is an area of active research and one of the primary motivations behind longevity-focused microdosing protocols explored later in this guide
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