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Overexpression of the bifunctional l-glutathione synthetase GshF from S
If youve been diagnosed with a B12 deficiency, received a B12 shot (or a course of them), and your B12 levels are now within the normal range, but your fatigue persists, its a strong indication that your tiredness is likely due to something else
Theoretically, yes, through two mechanisms
GAD patients exhibited increased Bacteroides, Ruminococcus gnavus , and Fusobacterium (Jiang et al., 2018), with the latter linked to epithelial disruption, gut inflammation and IBS pathogenesis (Zhou, 2016)