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What we do know: In one Dutch study when people with IBS or IBD and normal B12 levels were given a daily B12 supplement, they didnt report any significant improvements in fatigue, depression, or quality of life

Authors : Knoop A, Thomas A, Fichant E, Delahaut P, Schnzer W, Thevis M

Eaton JE, Nelson KM, Gossard AA, Carey EJ, Tabibian JH, Lindor KD, et al
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