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Without adequate B12, the body cannot produce healthy red blood cells or maintain the myelin sheath that protects nerve fibers
The balls in your court
Vitamin B12 also helps prevent a type of anemia called megaloblastic anemia that makes people tired and weak
That is the functional medicine difference
NAD+ does not carry the same growth-stimulating mechanism and is more broadly applicable across patient profiles, though dosing and delivery method still require clinical judgment
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