The Association Between Short-Chain Fatty Acids and the Incidence of Food Allergies—Systematic Review

Based on studies, there appears to be an association between lower stool levels of SCFAs-particularly butyric, propionic, acetic, and isovaleric acids-and the occurrence of food allergies in both children and adults. A proper diet that strengthens fibre, probiotics, and prebiotics and limits antibiotics, xenobiotics, pesticides is crucial for maintaining adequate SCFA levels and thus reducing allergy-related symptoms. 3,4-Methylvaleric acid and the activation of inflammatory processes contributing to intestinal leakage may provide a new diagnostic path.