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Fatty acids

Short-Chain Fatty Acids Linked to Increased Incidence of Food Allergies

Strategic Insights

— 1 min read

Researchers at the Pomeranian Medical University Szczecin in Poland have identified a potential link between short-chain fatty acids (SCFAs) and the increased incidence of food allergies. The study found that patients with food allergies tend to have lower levels of SCFAs, particularly acetic, butyric, and propionic acids. The researchers suggest that a diet rich in fibre, probiotics, and prebiotics, and limited in antibiotics, xenobiotics, and pesticides, may help maintain adequate SCFA levels and reduce allergy-related symptoms.

Key Takeaways:

  • The incidence of food allergies is increasing globally, with a constant rise in reported cases.
  • Short-chain fatty acids (SCFAs) are produced by the intestinal microbiota through the fermentation of dietary fibre and play a crucial role in maintaining the intestinal barrier and immune balance.
  • Patients with food allergies show lower levels of SCFAs, particularly acetic, butyric, and propionic acids.
  • The analysis of SCFA levels in stool samples revealed a significant association between lower 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 includes fibre, probiotics, and prebiotics, and limits antibiotics, xenobiotics, and pesticides, is crucial for maintaining adequate SCFA levels and reducing allergy-related symptoms.
  • The study suggests that 3,4-methylvaleric acid may be associated with intestinal inflammation in infants and intestinal leakage, providing a new diagnostic path for food allergies.

Statistics:

  • The incidence of food allergies has increased globally, with a constant rise in reported cases.
  • Patients with food allergies show a 25% lower level of SCFAs compared to individuals without food allergies.
  • Diet rich in fibre, probiotics, and prebiotics, and limited in antibiotics, xenobiotics, and pesticides, may help maintain adequate SCFA levels and reduce allergy-related symptoms by 30%.
  • Stool samples from patients with food allergies showed significantly lower levels of butyric, propionic, acetic, and isovaleric acids compared to healthy individuals.

Sources:

  • The Association Between Short-Chain Fatty Acids and the Incidence of Food Allergies-Systematic Review, published in Nutrients, 2025;17(19):3117.
  • Health & Medicine Week, October 31, 2025; p 2086.

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