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Autism spectrum disorder (ASD) is a neurodevelopmental problem of unknown etiology with an increasing prevalence. Genetic and environmental factors are known to be effective in ASD. Gastrointestinal system (GIS) problems are frequently observed. It is stated that GI problems may be a triggering factor for the abnormal behaviors seen in ASD. There are various nutritional approaches such as gluten-free-casein-free diet, ketogenic diet, Feingold diet to alleviate behavioral symptoms and GI problems seen in ASD. This review aimed to assess the effects of scientific evidence-based nutritional approaches on autism symptoms. Keywords: autism spectrum disorder; ASD; eating patterns; food selectivity; nutrient intake.
Sedef Güngör (Tue,) studied this question.