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Studies have shown that maintaining optimal B12 levels may protect against age-related cognitive decline
The usual dose is 1 mg per day, but this may be adjusted depending on the patient's individual needs
Also, MP and NP can be internalized by intestinal epithelium and be re-released into the intestinal lumen due to a turnover of approximately 3 days, thus not reaching the bloodstream [45]
Elo IT, Luck A, Stokes AC, Hempstead K, Xie W, Preston SH
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