What is an Eating Disorder?IN BRIEF
An eating disorder encompasses various eating behavior conditions that can lead to physical or psychological health issues. Autistic people are proportionally more likely to experience eating disorders compared to allistic people (non-autistic). However, some autistic traits can lead to misdiagnoses of eating disorders when they actually reflect characteristics specific to autism.

Definition of Eating Disorders
The term “eating disorder” refers to various conditions related to eating behaviors that can cause challenges to physical or psychological health. Autistic individuals are statistically more likely to experience eating disorders compared to non-autistic individuals. However, certain autistic traits can lead to misdiagnoses of eating disorders, as these traits may simply reflect the unique characteristics of autism.
Sensory Experiences and Eating
Eating and drinking involve a wide range of sensory experiences. Every food item has its own smell, taste, temperature, texture, and more. Chewing and swallowing also produce sounds. The characteristics of food, such as its texture and flavor, can change during a meal, depending on factors like temperature and contact with saliva.
Autistic people, who are often hypersensitive, experience these sensations more intensely, which can make mealtimes particularly challenging.
They may feel easily overwhelmed during meals, especially when eating with others, as they need to manage polite eating behaviors and engage in conversation to appear friendly. This combination can feel like too much for the brain to handle. For some, it may seem easier to simply manage hunger instead.
When the sensory aspects of eating become too overwhelming, autistic individuals—particularly those assigned female at birth—may be mistakenly diagnosed with an eating disorder.
Connection with Autism
Certain autistic traits may increase the likelihood of developing eating disorders. For example, the need for strict routines or the tendency to adhere to rigid rules can become risk factors. While these qualities often help structure daily life, they can lead to eating disorders if the adopted rules are not health-supportive.
Types of Eating Disorders
Anorexia
Insufficient food intake.
Bulimia
Consuming large amounts of food in a very short time.
Orthorexia
An extreme desire to eat healthily, taken to an unhealthy level.
Eating behaviors
Refers to how someone interacts with their food and their habits related to eating.
Other Food-Related Sensitivities That Are Not Eating Disorders
Hypersensitivity to food tastes and textures
Not receiving enough sensory input while eating.
Hyposensitivity to food tastes and textures
Not receiving enough sensory information when feeding
References
Phantom, The links between autism and anorexia, 2018, Understanding autism website
Demartini, Benedetta, Veronica Nisticò, Vincenzo Bertino, Roberta Tedesco, Raffaella Faggioli, Alberto Priori, and Orsola Gambini. “Eating Disturbances in Adults with Autism Spectrum Disorder without Intellectual Disabilities”. Autism Research 14, no. 7 (July 2021): 1434 43.