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Vitamin B12 injection prevents and treats low vitamin B12 levels in your body

Some describe feeling: Warmth in the face or chest A brief increase in energy or alertness Mild tingling A temporary metallic taste Mild pressure or cramping sensation These sensations are usually short-lived and are thought to reflect the rapid cellular and metabolic activity triggered by NAD as it supports mitochondrial function and cellular energy production

Intranasal treatment (via a nasal spray) of B12 is also available through a prescription (Andrs, 2018)

doi: 10.3389/fonc.2020.626751 72 ManiamSCouttsASStratfordMRMcGouranJKesslerBLa ThangueNB