EssentialStrong
Vitamin B12 (Cobalamin)
Essential for nerves, blood formation, and methylation. Deficiency is common — in vegans and with age (absorption declines) — and, untreated, can cause irreversible nerve damage.
DoseVegans and older adults: supplement regularly. Methyl- or cyanocobalamin both work. Measure status (holo-TC, possibly methylmalonic acid).
· Any time