Autism, also called autism spectrum disorder (ASD), is a neurodevelopmental disorder in which there is a distinct and persistent pattern of impaired social interaction, communication, repetitive behaviors, and restricted interests or activities. Autism is a condition that affects a person's thinking, perception, problem-solving and social interaction abilities. Autism spectrum disorder is usually noticed in childhood, but symptoms can persist throughout life. Autism often has a distinct clinical presentation and exhibits a wide range of symptoms across individuals. Therefore, the term "spectrum" is used to refer to differences in the intensity and diversity of autism symptoms. Autism symptoms may be evident in difficulties with social interaction, communication difficulties, repetitive behaviors, and limited interests or activities. These may include, for example, symptoms such as difficulty maintaining eye contact, difficulty understanding emotional expressions, delay in speech and language development, intense interest in certain topics or objects, strict following of routines, repetitive movements or behaviors. Autism can impact a person's quality of life and daily functioning, but with support and early interventions, quality of life can be improved and potential maximized for many individuals. Although the cause of autism spectrum disorder is not fully known, the interaction of genetic, environmental and neurodevelopmental factors is thought to play a role. The importance of early diagnosis, intervention and appropriate supports for autism is increasingly understood. Autism treatment is a complex process that requires an individualized approach. The needs of individuals with autism spectrum disorder (ASD) may differ, and the treatment plan should be tailored to the individual's characteristics, age, abilities and needs. Autism treatment may include several components, such as early diagnosis, early intervention, education, behavioral therapies, supportive services, and medication. The primary supportive treatment includes a healthy and balanced diet that will positively affect children's neurological and physical development.