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AACR-NCI-EORTC, 2005
This matters because a black tongue plus black stools sounds frightening enough to send people to urgent care
Does glutathione interfere with any medications
Folate supplementation without adequate B12 can also partially mask B12-related anaemia in routine blood tests, making deficiency harder to detect through a standard CBC alone (Cikot et al., 2001, British Journal of Nutrition)
PMID 14576844
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