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This can happen due to low levels of intrinsic factors in the digestive system, digestive conditions, or following a plant-based diet
Oral versus intramuscular administration of vitamin B12 for the treatment of patients with vitamin B12 deficiency: a pragmatic, randomised, multicentre, non-inferiority clinical trial
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Find out what supplements & vitamins can help with ulcerative colitis, such as VSL#3, curcumin, aloe or boswellia
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