chronic fatigue syndrome glutathione Can L-Glutathione Support Energy and Detoxification in Long COVID and ME/CFS? Chronic Fatigue Syndrome | Treating

Small intestinal disorders: those with gut conditions such as coeliac disease, inflammatory bowel disease and small intestinal bacterial overgrowth (SIBO), and those whove had the ileum - the part of the small intestine that absorbs B12 - surgically removed, are at risk

diseases of the liver, kidneys and the blood (such as leukaemia) can be considered potential reasons for an increased B12 blood level (1-4)

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[DOI] [PMC free article] [PubMed] [Google Scholar] 41.Li Y., Chen X., Zhou M., Feng S., Peng X., Wang Y

anaerobius in both tumor lesion biopsies and stool samples from CRC patients, compared to healthy individuals (Tsoi et al., 2017)