Study Identifies Flavonoids That Enhance Immune Regulation

Kaempferol, a flavonoid found in kale, tea, spinach, and broccoli, significantly reduces inflammation by promoting immune regulation, according to research published in Allergy. The study screened over 40 flavonoids and identified kaempferol as the most effective in enhancing immune tolerance. Quercetin, found in apples and onions, and fisetin, present in strawberries, were also effective but less potent. These findings highlight the critical role of dietary choices in managing inflammation.

The study revealed that kaempferol increases the function of specific immune cells responsible for reducing inflammation, making it a key compound in anti-inflammatory diets. Patients with inflammatory or autoimmune conditions may experience better immune regulation by including foods rich in kaempferol. In addition, quercetin and fisetin offer complementary benefits and are readily accessible in everyday diets, providing multiple options for achieving immune balance.

Researchers emphasized that diets abundant in flavonoid-rich foods could be a cornerstone of natural therapies for chronic inflammatory conditions. For patients with autoimmune diseases, allergies, or other inflammation-driven disorders, foods like leafy greens, cruciferous vegetables, onions, apples, and berries represent practical, impactful dietary tools to reduce inflammatory responses.

Reference

Takahashi M, Nagata K, Watanuki Y, et al. Kaempferol Exerts Anti-Inflammatory Effects by Accelerating Treg Development via Aryl Hydrocarbon Receptor-Mediated and PU.1/IRF4-Dependent Transactivation of the Aldh1a2/Raldh2 Gene in Dendritic Cells. Allergy. Published December 11, 2024.