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B.PurupS
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Remember that it takes at least 4 months to reach the most effective 2.4 mg weekly dose
I dont know why (nor could my doctors figure it out) but around five years ago at age 60 my body apparently stopped absorbing B12 through my digestive system
This also implies that, once it migrates to the outer membrane, it may have succeeded in permanently trapping one or more deuterium atoms, because deuterons bound to bis-allylic carbon atoms very rarely exchange back with hydrogen (Navratil et al., 2018)
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