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A gluten-free casein-free diet ( GFCF diet ), also known as a gluten-free dairy-free diet ( GFDF diet ), is a diet that does not include gluten (found most often in wheat, barley, and rye ), and casein (found most often in milk and dairy products ). Despite an absence of scientific evidence, there have been advocates for the use of this diet as ...
Conditions comorbid to autism. Autism spectrum disorder (ASD) is a neurodevelopmental disorder that begins in early childhood, persists throughout adulthood, and affects two crucial areas of development: social communication and restricted, repetitive patterns of behavior. [ 1] There are many conditions comorbid to autism spectrum disorder such ...
Avoidant/restrictive food intake disorder ( ARFID) is a feeding or eating disorder in which individuals significantly limit the volume or variety of foods they consume, causing malnutrition, weight loss, and/or psychosocial problems. [1] Unlike eating disorders such anorexia nervosa and bulimia, body image disturbance is not a root cause.
Individuals with autism spectrum disorders, including high-functioning autism, risk developing symptoms of anxiety. While anxiety is one of the most commonly occurring mental health symptoms, children and adolescents with high functioning autism are at an even greater risk of developing symptoms. [18]
A wide variety of postnatal contributors to autism have been proposed, including gastrointestinal or immune system abnormalities, allergies, and exposure of children to drugs, infection, certain foods, or heavy metals. The evidence for these risk factors is anecdotal and has not been confirmed by reliable studies.
Heritability of autism. The heritability of autism is the proportion of differences in expression of autism that can be explained by genetic variation; if the heritability of a condition is high, then the condition is considered to be primarily genetic. Autism has a strong genetic basis. Although the genetics of autism are complex, autism ...
Epidemiology of autism. The epidemiology of autism is the study of the incidence and distribution of autism spectrum disorders (ASD). A 2022 systematic review of global prevalence of autism spectrum disorders found a median prevalence of 1% in children in studies published from 2012 to 2021, with a trend of increasing prevalence over time.
Nonverbal autism. Nonverbal autism, also called nonspeaking autism, is a subset of autism spectrum disorder where the person does not learn how to speak. One study has shown that 64% of autistic children who are nonverbal at age 5 are still nonverbal 10 years later. [1] [failed verification]