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[95] Intramuscular or intravenous injection [edit] Injection of hydroxycobalamin is often used if digestive absorption is impaired, [2] but this course of action may not be necessary with high-dose oral supplements (such as 0.51.0 mg or more), [97] [98] because with large quantities of the vitamin taken orally, even the 1% to 5% of free crystalline B 12 that is absorbed along the entire intestine by passive diffusion may be sufficient to provide a necessary amount
The NIH notes that vitamin B12 deficiency can cause fatigue, anemia, and neurological changes such as numbness or tingling, which is why visit context matters more than simply ordering a wellness shot online
At Perfect B, most patients on either protocol see meaningful results at the two-month mark, roughly two treatment cycles
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