Your Gut Nervous System Helps Regulate Intestinal Barrier and Allergy Risk

Your gut's nervous system directly influences whether you tolerate foods or react to them, making it a key factor in food sensitivities and allergy risk A tiny nerve messenger called the vasoactive intestinal peptide (VIP) tells your gut stem cells how to rebuild the intestinal lining; when VIP drops, your gut produces too many tuft cells that trigger allergy like inflammation Everyday exposures — like microplastics, seed oils, and emulsifiers found in processed foods — damage tight junction proteins, weaken your gut barrier, and increase the flow of irritants into your bloodstream Low vitamin D, disrupted sleep, and high stress interfere with your gut's ability to maintain barrier integrity and calm immune activity, raising your vulnerability to allergic reactions You can lower your allergy risk by supporting mitochondrial function, removing gut damaging triggers, restoring healthy carbs in the right order, and improving the nerve-gut connection that regulates intestinal healing