There was one study that showed that breastfeeding was associated with an increased risk of Crohn’s -- a finding which conflicts with the other evidence that breastfeeding protects against IBD. The authors were puzzled and speculate that their results could be because of the mother's exposure to environmental pollution which then enters into her breastmilk. Another possibility is that the study participants were already at a high risk of IBD because of their family history. The authors conclude, however, that their study should not be used as a reason to deter breastfeeding and that the benefits of breastfeeding on short- and- long-term health are substantial.
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