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Malabsorption Disorders: Conditions such as pernicious anemia, Crohns disease, celiac disease, or a history of gastric bypass surgery can hinder B12 absorption

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[DOI] [PMC free article] [PubMed] [Google Scholar] 57.Yousef A.-M., Shomaf M., Berger S., Ababneh N., Bobali Y., Ali D., Al-Hasan S., Diab O., Ismail S

Genetic deletion of NADPH oxidase 1 rescues microvascular function in mice with metabolic disease

PMID: 34145025 Hear Res 2025 Aug 15:466:109405

Most of the vitamins cannot be synthesized by humans, except vitamin D