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Higher absorption rate The intramuscular injection method ensures a 95% absorption rate compared to oral supplements, which have only 50% absorption
The key point: the best option depends on the reason for low B12 and your clinical context
Bone Health: Studies have suggested that a B12 deficiency can lead to osteoporosis
For researchers conducting long-term studies or those with needle aversion, these practical considerations may outweigh the bioavailability difference
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