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Children who are picky eaters may have more in common with autism spectrum disorder than previously thought. A new study found that subclinical autistic traits — especially social motivation deficits — and sensory over-responsivity are the strongest predictors of picky eating severity in kids aged 4 to 7. The findings could reshape how clinicians screen for and treat Avoidant/Restrictive Food Intake Disorder (ARFID).
Picky eating isn't just a phase — it may be a window into deeper neurodevelopmental differences. A new study published in Appetite: Disordered Eating found that subclinical autism spectrum disorder (ASD) traits and sensory processing differences are significantly linked to picky eating severity in young children. Researchers from Washington University in St. Louis analyzed data from 323 children aged 4–7, finding that about 23% met clinical criteria for picky eating.
When all factors were modeled together, two stood out as independent predictors: social motivation deficits (a component of autistic traits) and sensory over-responsivity unrelated to food. This suggests that children who struggle with social engagement and are easily overwhelmed by sensory input may be at greater risk for severe picky eating — and potentially Avoidant/Restrictive Food Intake Disorder (ARFID).
Key Takeaways:
Why it matters: Picky eating affects 20–30% of preschoolers, and when severe, it can evolve into ARFID — a serious eating disorder. Identifying neurodevelopmental roots early could help clinicians intervene sooner and more effectively.
