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[DOI] [PubMed] [Google Scholar] 134.Rochlitzer S., Veres T.Z., Khne K., Prenzler F., Pilzner C., Knothe S., Winkler C., Lauenstein H.-D., Willart M., Hammad H., et al
Several studies have looked at people taking high doses of both vitamins over long periods and found no meaningful decrease in their B12 blood levels
Risk factors include recent surgery, prolonged immobility, cancer, pregnancy, and genetic clotting disorders
Patients with pernicious anaemia, malabsorption disorders (such as Crohn's disease or coeliac disease), or following gastric surgery require regular B12 supplementation to prevent serious complications including megaloblastic anaemia and neurological damage
NAD+ is a research compound sold for laboratory and research use only
Warning Signs of a B12 Deficiency: B12 deficiency is one of the most common and overlooked conditions in the world
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