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Description
Regular or heavy alcohol consumption can interfere with the body's ability to absorb Vitamin B12 from the gut, making the supplement less effective
FujitaHChibaHYokozakiHSakaiNSugimotoKWadaTet al
Margolina, A
For those without an absorption problem, research suggests that high-dose oral B12 supplements can be as effective as injections in raising and maintaining B12 levels
