Clinical Trial of "Exploradores de Sabores" to Improve Food Selectivity in ASD Kids

Inclusion Criteria: * Children diagnosed with Autism Spectrum Disorder (ASD) requiring support levels 1, 2, or 3, without cognitive impairment. * Primary caregivers with sufficient availability to participate in and implement the intervention. * Children with or without mild functional gastrointestinal symptoms. * Children experiencing difficulties with the introduction or acceptance of new foods. * Children with clinically significant food selectivity, as determined by AUT-EAT * Children with malnutrition. Exclusion Criteria: * Current use of medications known to substantially affect appetite or feeding behavior (e.g., cyproheptadine, clonidine, or other appetite-modifying medications). * Syndromic Autism Spectrum Disorder (ASD). * Clinically significant gastrointestinal disorders requiring active medical treatment. * Medical conditions that significantly affect nutritional status, growth, or feeding behavior (e.g., phenylketonuria, cystic fibrosis, inflammatory bowel disease, endocrine disorders, or eating disorders). * Cases in which the parent or legal guardian attending the training sessions is not the individual responsible for implementing the intervention activities with the child at home.