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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
When your body gets the right amount of B12, it performs more efficiently, making it easier to stay active, eat mindfully, and stick to your fitness plan
Understanding the Biochemistry In a healthy person: Parietal cells in the stomach lining produce intrinsic factor (IF) and hydrochloric acid
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