The Relationship Between Nutrition and Autism Spectrum Disorder: A Review of Evidence-Based and Unproven Dietary Interventions

Csabai, Judit and Ciobica, Alin and Hörcsik, Tibor Zsolt (2025) The Relationship Between Nutrition and Autism Spectrum Disorder: A Review of Evidence-Based and Unproven Dietary Interventions. In: Fenntartható Tájgazdálkodási Tudományos Műhely konferenciája 2025 : Innovatív megoldások a XXI. század mezőgazdaságában. Nyíregyházi Egyetem, Műszaki és Agrártudományi Intézet, Nyíregyháza, pp. 85-91. ISBN 9786156032836

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Abstract

Several diets have been touted in recent years as possible assistance in autism, frequently based on anecdotal parental accounts or popular internet recommendations. The most popular are gluten- and casein-free, ketogenic, and other exclusionary diets. To see if any of these are supported in current research, five such studies published after 2021 were chosen and examined in our review. Consistency is lacking in the results. While several small trials show minimal improvement in selected areas, the majority of results remain inconclusive or compromised due to flawed methodology. Some diets also pose a potential risk for nutrition-related harm. Balanced, varied nutrition, particularly that which is beneficial to intestinal health, may prove more practical, in any case, due in part to the newly established associations between autism and gut imbalances in microbes.

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