Understanding Food Aversion in Neurodivergence
Picky eating is common among individuals, affecting both children and adults. It is usually outgrown, or preferences may change, so that a once-disliked food may later be tolerated and enjoyed. An extreme reaction to a food, such as gagging, vomiting, and intense anxiety, is a hallmark of food aversion. It is often associated with hypersensitivity to a specific sensory attribute, such as taste or texture, rendering a wide variety of foods with similar attributes intolerable.
The Core Causes: Sensory and Emotional Triggers
As previously mentioned, hypersensitivity to foods due to an overstimulated nervous system can result in an inability to tolerate certain textures, smells, colors, and even temperatures. For instance, an individual may dislike mushy foods, thereby limiting their potential food choices to mashed potatoes, yogurt, or bananas.
A core trait among individuals with autism is the need for control and routine. Introductions to new foods or foods they dislike can create a sense of lack of control, leading to an anxious feeding environment and further restrictions or avoidance of foods. It may even be common for someone with autism or ADHD to desire to eat the same foods daily or even at every meal because it offers the safety of knowing what to expect.
Strategies for Managing Aversions and Expanding the Diet
Creating a Safe Food List and Building Trust
Managing food aversions can be challenging, but in some situations, overcoming them is possible. Specific
strategies, like creating a safe foods list, can help and provide comfort. Additionally, discussing potential new foods before mealtimes and allowing the individual with food aversions to have some say and control in choosing the new food may help. This can help substantially with children who often feel a lack of control over what they eat. Consistent meal times and a routine are also key to creating predictability and trust.
Gentle Exposure Therapy and Food Chaining Techniques
When
introducing new foods, simply place the new food on their plate and allow them to look at it, touch it, and smell it before eating. This can help reduce anxiety associated with the new food and lead to greater acceptance.
Food chaining can help picky eaters by introducing new foods that resemble familiar foods in appearance, texture, or taste. For instance, try chicken nuggets, then introduce fish sticks or fish nuggets to try fish. Or using potato chips to introduce banana chips.
Check out
this helpful handout for more information. It is important to remain patient when introducing new foods to help reduce stress and anxiety.
The Importance of Professional Support
Occupational therapists and feeding therapists are very great resources for individuals with food aversions and other disordered eating behaviors. If you suspect either yourself or your child is struggling with food aversions, talk with your healthcare provider to get a referral to a specialist to work with you to overcome feeding behavior challenges.
Furthermore, a referral to a registered dietitian is helpful in ensuring that nutritional needs are met for optimal health and growth, especially in children. Sometimes, multivitamins are needed, along with oral nutrition supplements such as protein shakes, to help meet calorie and protein requirements. Dietitians may also have great ideas for alternative foods to try, which will help expand variety.
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Fishbein, M., Cox, S., Swenny, C., Mogren, C., Walbert, L., & Fraker, C. (2006). Food Chaining: A systematic approach for the treatment of children with feeding aversion. Nutrition in Clinical Practice, 21(2), 182–184. https://doi.org/10.1177/0115426506021002182
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Gulácsi, Á., Scheuring, N., Stadler, J., Siba, M., & Danis, I. (2023). A szenzoros ételelutasítás a kora gyermekkori evészavarok korszerű megközelítésének tükrében. Orvosi Hetilap, 164(45), 1767–1777. https://doi.org/10.1556/650.2023.32872
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Grot, M., Białek-Dratwa, A., Krupa-Kotara, K., Grajek, M., Nigowski, M., Szczepańska, E., & Kowalski, O. (2024). Negative Aspects of Dietary Habits in Children and Adolescents with Autism Spectrum Disorders. Nutrients, 16(18), 3059. https://doi.org/10.3390/nu16183059
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Picky eating vs. ARFID — How to tell the difference. (2025, May 16). UCLA Health. https://www.uclahealth.org/news/article/picky-eating-vs-arfid-how-tell-difference
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Vasilakis, M., Polychronis, K., Panagouli, E., Tzila, E., Papageorgiou, A., Thomaidou, L., Psaltopoulou, T., Tsolia, M., Sergentanis, T. N., & Tsitsika, A. K. (2022). Food Difficulties in Infancy and ASD: A literature review. Children, 10(1), 84. https://doi.org/10.3390/children10010084
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