A study published Sunday, June 14, in Nature has identified a previously unknown mechanism by which dietary choline strengthens intestinal immune defenses.
Researchers reported that specific gut bacteria convert dietary choline into the chemical messenger acetylcholine, which in turn increases levels of immunoglobulin A (IgA) antibodies in the gut lining. IgA serves as the body’s first line of defense against pathogens at the intestinal surface.
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