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Description
The benefits vary by target application, and each has distinct evidence behind it

The AAFPs evidence-based clinical review states directly: Oral administration of high-dose vitamin B12 (1 to 2 mg daily) is as effective as intramuscular administration for correcting anemia and neurologic symptoms in patients with B12 deficiency (Langan RC, Goodbred AJ, American Family Physician, 2017)

Cerebral microvascular accumulation of tau oligomers in Alzheimers disease and related tauopathies

Others work best with continuous administration

A good insurance policy is to take a comprehensive prenatal vitamin that contains vitamin B12 in a bioavailable form and in a sufficient amount

Zirah S
